iPhone OS 4 Now Called iOS 4; Release Date Is June 21

WWDC 2010 Dates announced

Steve Jobs announced at today’s WWDC Keynote address that they will be renaming iPhone OS as iOS so iPhone OS 4.0 is now iOS 4.

It makes sense as iPhone OS for iPod Touch and for the recently launched iPad didn’t seem right. We’re also hearing rumors that the new Apple TV will also be based on iPhone OS.

Apple had given us a sneak peak of its next generation iPhone OS in April. So to recap, iPhone OS 4.0 includes 100 new features for iPhone users and more than 1500 new APIs for app developers.

Here are some of the major new features in iOS 4 that were previewed by Apple at the special event:


iPhone users will finally be able to run iPhone apps in the background. To achieve this Apple will be offering developers seven multitasking services, which will allow their iPhone app to run in the background while preserving performance and battery life.


Users will be able to organize iPhone apps on their iPhone home screen into folders. Users will be able to drag and drop apps into folders.

This means iPhone users will be able to install 2160 apps instead of the current limit of 180 iPhone apps.

However, nothing describes this feature better than the video below. The video also gives a demo of the multitasking feature, which shows how you can close apps running in the background.

Better Mail app:

You will now be able to see messages from multiple email accounts in a unified inbox. iPhone OS 4.0 will also allow you to organize messages by threads, and even be able to open attachments in third-party iPhone apps.


iBooks app will be available on the App Store for iPhone and iPod Touch users so they will be able to browse, buy, and read ebooks.

New Enterprise features:

iPhone OS 4.0 also brings new enterprise features such as data protection, wireless app distribution, mobile device management, SSL VPN support, allows users to set up multiple Exchange ActiveSync accounts and will also work with Exchange Server 2010.

New APIs, iAd, Game Centre:

iPhone OS 4.0 includes more than 1500 new APIs for app developers.

Apple has also launched iAd, mobile advertising platform for iPhone apps.

Apple has also announced that it plans to launch Game Center, the social gaming network later this year and has provided GameKit APIs in iPhone OS 4.0 to develop for Game Center.

In addition to the features announced by Apple, we’ve discovered the following hidden features:

Cellular Data Toggling: You have an option to toggle cellular data on or off.

iPhone OS 4.0 features

Messages Character Count: You can turn on the 'Character Count' option in Messages Settings in order to keep a tab on the number of characters while typing a message.

iPhone OS 4.0 features

Text Messages Search: iPhone OS 4 extends the iPhone's inbox search feature to text messages. You can finally search through your SMS messages.

iPhone OS 4.0 features

Camera Zooming: As reported earlier, users taking a picture from their iPhone will now see a sliding bar at the bottom of the screen to zoom in and out while taking a picture (up to 5x digital zoom). Alternately, tapping on the screen will also allow users to zoom in and out while taking a picture.

iPhone OS 4.0 features

Web and Wikipedia Search: As we had reported earlier, the global search screen on the iPhone now has two additional options – 'Search Web' and 'Search Wikipedia' to let users directly search for content on the web and Wikipedia.

iPhone OS 4.0 features

Document Border: Previewing documents on the iPhone will now display these files without the borders. This is expected to help squeeze in an additional pixel or two of content.

iPhone OS 4.0 features

Add New Contacts: The Contact window on the iPhone looks more streamlined in iPhone OS 4 allowing users to enter more details about the contact without navigating away from the main screen.

iPhone OS 4.0 features

iPhoto Syncing: iPhoto users can sync their photos to the iPhone via Events, Faces and Places. This will work for the iPad too.

Lyrics Data Toggling: A new global toggling option gives you the ability to turn the display of lyrics on or off.

iPhone OS 4.0 features

Photo Resize Option: Users sending large-size image files via email can choose to resize the photo on the go by selecting from the four different file size options.

iPhone OS 4.0 features

Add Playlist: The current on-the-go playlists will be replaced by the 'Add Playlist' option in iPhone OS 4 that will be automatically synced back to the users' iTunes account.

iPhone OS 4.0 features

Album Info: Browsing albums have traditionally displayed the tracks and the shuffle option. You can view the album thumbnail, track count, length of tracks and album release date.

iPhone OS 4.0 features

Location Services For Apps: You can enable or disable location services for each location based apps via Settings -> Location Services. Also, you also get visibility on the apps that have most recently accessed this information using the compass arrow icon.

iPhone OS 4.0 features

Email Threading: You can organize emails by thread in the Mail app just like in Gmail. Email threading option can be turned on or off via Settings -> Mail, Contacts, Calendar and turn on or off the 'Organize By Thread' toggle (this feature was demoed during the iPhone OS 4 event, the screenshot shows you how it can be enabled).

iPhone OS 4.0 features

Longer Passcodes: Passcodes will no longer be limited to just 4 numbers. You can set a more secure alphanumeric and longer passcode for your iPhone. You can currently use the iPhone Configuration utility to achieve this.

iPhone OS 4.0 features

Alerts On App Folders: iPhone OS 4 gives you the ability to sort apps into folders. When any of the apps inside a folder receives an alert, you'll be informed of the same with an exclamation point over the main folder icon.

iPhone OS 4.0 features

Flashlight mode:

An iPhone user has demonstrated the ability of the iPhone to act as a flashlight. This is done by pressing the power/lock button of an iPhone running iPhone OS 4.0 Beta 4 three times in quick succession, which lights up the iPhone display with a bright white screen. Pressing the power button one more time will replace the flashlight screen with the normal iPhone display.

You can watch the flashlight in action in the video embedded below.

iPhone Tethering:

AT&T has also announced that it will finally allow iPhone tethering with the release of iOS 4. AT&T customers will have to pay $20 to enable it.

Availability and Compatibility:

iPhone OS 4.0 will be available as a free upgrade to iPhone 4, iPhone 3GS, iPhone 3G, second and third generation iPod Touch users. Also the multitasking feature will be available only to iPhone 4, iPhone 3GS and the third-generation iPod Touch (32GB and 64GB models from late 2009) users.

Release Date:

Apple has announced today that it will be releasing iOS 4 in two weeks on June 21. It will be seeding developers of its iPhone Developer program with iPhone SDK 4 GM (Golden Master), which is the shipping version and needs to be used by developers to submit their iPhone apps.

The combination of Apple’s new iPhone 4 and iOS 4 will be very difficult to beat. What do you think?


Are You Ready For iOS 4? Here Are Some Tips

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  • TimW

    I really like some of the new features, another step away from Jailbreaking.
    Now we wait for Comex & Dev team to comment 😉

  • ricky

    will the new iphone 4 run on tmobile 3g internet???

  • No, not officially.

  • JC

    I think that one of the main reasons to Jailbreak is Tethering. I'm planning on keeping my $30 data plan and run MyWi as soon as it becomes available for iOS 4.0. Also, I like to see how 3G Unrestrictor would perform with video conferencing over the Cellular Network.

  • Jeet

    hi i have a iphone 3g 16gb and i am planning to upgrade to iphone 4 can i still get the unlimited data plan even if i upgrade it to iphone 4?

  • Jamie

    I wish they would have let us change the text message sound

  • 3g unresticter is obsolete now. it has been replaced buy a better app though it cost a little bit more: My3g

  • Mr. Tex

    Yes you can. As they AT&T says it, if you already have the existing unlimited data….they will grandfather it onto your 4g. Only new customers will have those horrible options. I feel sry for them.

  • Jeet

    hahaha…..suks for my brother….lol

  • wolverinemarky

    cant wait to see what other minor tweaks they included, would like to see the ability to make a folder in photos app for specific occasions, and ability to use mp3s for text message sounds

  • Mark

    Isn't the release date on the 24?

  • Naveed

    1. Multitasking is availables with apps which have been developed for iOS4

  • Mark

    I misread the heading, my mistake. My excitement is getting the best of me.

  • Wishkid

    I dont know if this IPSW work but apparently is the iOS GM released http://www.megaupload.com/?d=8G11QUGG
    I compared to other ones I found and it seems the same. Will update after install

  • Wishkid


    Does not work apparently when it connects to apples server it's stop the software from performing the update or restore now im goinf back to 3.1.3.

  • Randumbwhiteguy

    I can't believe there are still people out there that even use a stock iphone the only thing on mine that resembles the iphone is the body; the rest is KDE or Nexus themes with 30,000hz text tones. Its called Cydia people wake up !!

    Get at me for screen shots or tones
    and let me check out yours !

  • Craig

    Hmm think it's not enough to not jailbreak Tim?
    Looks good tho, and bite SMS etc would be icing on the cake 🙂

  • TimW

    just had some 'PlayTime' with the Dell Streak…….It's well nice but could do with the 2.2 droid fw

    iOS4 looks really featured, think Apple are secretly listening to the 'forum voices' at last.
    Now, if they added Shrink, My3G & Infinidock to '4' id be happy

    Haven't been home since we last talked Craig, not forgot those disk's though, away in a sandy province for a while longer mate

  • key

    it's only really available for Mac users b/c there isn't a windows itunes 9.2 out just yet.

    itunes 9.2:

    working ipsw of ios4:

    you don't need itunes 9.2 to actually install ios4, but to activate the phone and all you need to have it.

  • Tim

    What's up with copying Cisco's IOS name for operating system. Wish Apple could get sued for using iOS. Since they sue everybody else.

  • Cisco has apparently licensed the iOS name to Apple so it won't be sued.

  • Jamie

    I'm not good with computers i wish I was I don't no how to jailbreak my iPhone are nothing I'm only 13 my parents won't even bye my a computer of my own

  • Craig

    Hey Tim, it's cool I figured you must be on hols or similar.
    I agree mate, infiniboard and dock are awesome thanks for rec them to me a while back.
    And this active wallpaper business, whas that about?!

    Do you or anyone know of SMS alert sounds etc on ios4? Trivial maybe but the standard issue are crap!

    And SMS pop ups, hope they're gone,,I guess I'm kidding myself, will be paying Mr Freeman a visit again in near future eh mate?:)

  • Seriously, jailbreaking is completely pointless. What is it useful for? All that happens is your warranty becomes void, and your phone now looks like a different phone. Frankly it's annoying, as you can't read the text under the apps with the personal background, and it just looks stupid when you change the apps to other pictures.I think I may be the onlyperson in the world to jailbreak their iPhone, then undo it because it was the most pointless move in the world. Really, why did you buy an iPhone, then hollow out the insides and stuff in some crap from a Nexus. JUST BUY A NEXUS!

  • Mataccadacca

    Now, n00b. Here's a little history lesson. iPhone come out. No app store! Dev team make their own app store(technically they didn't, but they made it possible). Apple go "that good idea!" and make app store.

    Let's zoom forward in time. iOS 4 multitasking; Already done! Pic behind wallpaper; done! iPhone tethering; done! Unified inbox; done! In fact, there aren't many things apple haven't copied.

  • Kelly

    Hec No, they have AT&T exclusivity until 2012 agreements.

  • Cisco licensed them to use that name, Apple went to them before they officially called is iOS

  • Timo1994

    It would be cool if the camera could be upgraded from 3gs to 5.0 mega pixls. After all, there are apps which enable 3g users to take videos…

  • Mark F

    I've finally been able to install iOS4 GM on my 3GS now that iTunes 9.2 is out for windows.

    I'm wondering if there's a way to fake iPhoto faces & events information, so it'll show the apropriate options.

    I'm assuming iPhoto just uses custom tags to tag photos with faces and events, which the iPhone detetcts and displays.

    Anybody have any idea how to do this in Picasa or Windows Live Photo Gallery Wave 4? I've tagged faces using WLPG4 but am not getting the 'faces' option on my iPhone.

    Places does show up and works perfectly, even with photos that are geotagged via other programs.

    Anybody have iPhoto and can analyze an iPhoto tagged face pic for any clues?

  • Rob

    Jailbreak still required. Tethering with the AT&Ts grandfathering will still require Mywi or you will fall under the new 2g of data plan

  • Does anyone have time on when I can download this update? I live in Texas. Central time.

  • Stud99

    How can the flashlight work? I have a 3G iphone,, but could not make it work according to the instructions you listed…

    waiting ur guidance…