New Features in iOS 4.2

http://www.techwench.com/new-features-in-ios-4-2/

Multitasking is probably the most important feature introduced by iOS 4.2. iPad users can finally enjoy a feature that is already become a standard in any smart portable devices since years ago. Multitasking was also introduced last June on the iPhone. It may significantly improve productivity and usability of the tablet. A few key iPad applications already support multitasking, it will take a few more weeks or months for most applications to support this functionality.