iOS 4.2 features improved YouTube, CoreMIDI support

A number of new features and improvements have been discovered in the first beta version of iOS 4.2. AppleInsider reports that the software features an updated YouTube application with like and dislike buttons, as well as support for the CoreMIDI framework, which could enable iOS devices to interface with MIDI instruments via an adapter. Also new in 4.2 are restrictions allowing users to prevent the deletion of App Store applications and prevent changes to accounts in the Mail application, iTunes links in the iPad’s Videos app, and a dedicated FaceTime button at the top of all messaging sessions. Apple is expected to release iOS 4.2 in November.