Apple updated their iOS for iPad and iPhone into iOS 4.2 . This new version has lots advantages we can cherish. But it also has some notable disadvantages. iOS 4.2 Advantages and Features Multitasking: Run all your favorite apps — and switch between them instantly AirPrint : Wireless Print option for your Photos and Docs Folders : Easily organize apps. Drag and group your apps into a folder AirPlay: Wirelessly stream...