Apple have announced that iOS 4.2 is available today for iPad, iPhone & iPod touch devices.

The iPad gets long awaited multi-tasking ability, folders, and the unified Inbox that iOS4.1 brought to the iPhone. All devices will also get the AirPlay and AirPrint features announced back on the 1st September. Additionally Find My iPhone / iPad is now free for iPhone 4, the iPad, and the fourth-gen iPod touch running iOS 4.2.1.