The final version of iTunes 10.1 for both Windows and Mac has just been released. This version of iTunes will be required to install iOS 4.2 (when released) on iPhone, iPad and iPod touch.

iTunes 10.1 Beta has also been released today alongside iOS 4.2 Beta 2. Again, this release is currently meant for developers only, running both Windows and Mac. Except for the support of the new wireless printing feature in iOS, there is seems to be nothing new in this release.