Google has long tried to get into the instant messaging and communications market. For around a decade,  we’ve had Google Talk, which relied on the open XMPP standard. While that product has enjoyed support by many third party instant messaging clients, it has not become the mainstream messaging alternative that, say, Facebook has become in a very short time. At yesterday’s Google IO 2013 conference, the search giant released a Google Hangouts app for iOS and Android, which is set to become Google’s core communication tool. We take a look at what you can expect on your iPhone.