Citing an inside source at AT&T, MacStories reported Tuesday that iOS 4.2 will be released on Friday at 10 a.m. The update, which will mark the debut of iOS 4 on the iPad, will require iTunes 10.1 to be installed.
iOS 4.2 will bring AirPrint and AirPlay to the iPhone, iPod touch and iPad, allowing users to wirelessly print and stream music and video to connected devices. Mac users need Mac OS X 10.6.5 to share a printer with an iOS device, while Windows users will access a printer through iTunes 10.1.
iOS 4.2 was released to developers as a golden master on Nov. 1. That status implies that the software is finalized and will be identical to the eventual public release.
The software update will bring folders and multitasking to the iPad, along with other features iPhone and iPod touch users have enjoyed since the launch of iOS 4 this past summer. iPhone owners will also gain the ability to have custom text message tones with the latest version of iOS.