He announced the release date of greenpois0n on this Twitter page:
Things have progressed to the point where we don't expect anymore roadblocks. ETA for greenpois0n is 10/10/10 at 10:10:10AM
I guess sunday will be a funday after all 😛
SHAtter is the bootrom exploit discovered by pod2g of the Chronic Dev Team.
Apple can only prevent jailbreaking, by releasing devices with a new bootrom that patches the exploit, but Apple won’t be able to stop users from jailbreaking devices with the older bootrom.
So greenpois0n which makes use of the SHAtter exploit will jailbreak all existing iDevices for life.
Joshua has clarified that greenpois0n will be released on October 10th, 10:10 am GMT, which is 5:00 am ET or 2:00 am PST.
We've some bad news for older iPhone and iPod Touch users, it looks like greenpois0n, which uses the SHAtter exploit won't work on older devices such as iPhone 3GS, iPhone 3G, iPod Touch 3G. It will work only on devices that have Apple's A4 processor so it will be compatible only with iPhone 4, iPod Touch 4G, iPad and probably even the new Apple TV.
Geohot has released limera1n for iOS 4.1. Chronic Dev Team have decided to use Geohot's exploit in greenpois0n and save the SHAtter exploit for future iOS updates. So release of greenpois0n might be delayed.Joshua Hill]