Folders on the Android home screen
Android 4.0 makes it easy for you to group similar apps together in folders on the home screen to save on space or make things more tidy. While previous versions of Android let you create folders, they're easier to manage in 4.0, and their appearance has a sleek new look as well.
To create a folder in ICS, all you do is drop one icon on top of another on your home screen. You can add more items into the folder the same way. Once a folder's been created, you can tap the folder to open it and see all the apps within, as shown on the right.