Which of the following is a new feature of iOS 5?

A.
Ability to dual boot the Android OS

B.
Ability to run native PC applications

C.
Ability to perform iTunes backups

D.
Ability to perform untethered updates

Explanation:
http://www.applebitch.com/2011/05/05/rumor-ios-5-could-bring-untethered-softwareupdates/