Chronic Dev team has released greenpois0n RC6 to jailbreak Apple TV 2G on iOS 4.2.1 for both Mac and Windows.
Last weekend, Chronic Dev team had released greenpois0n to jailbreak iPhone, iPad and iPod Touch on iOS 4.2.1.
pod2G, member of the Chronic Dev Team announced the news via Twitter:
greenpois0n RC6 is out. http://www.greenpois0n.com/ . Both Mac & Windows.
So greenpois0n RC6 supports the following iOS iDevices: