Open Android Project Kang lets you customize your navigation bar
One of the great innovations of Ice Cream Sandwich is the possibility of using terminals that lack physical buttons for managing the terminal replacing these by a touch navigation bar. This bar is only available for now in the Galaxy Nexus, that comes standard with three buttons that allow us access to open applications.
Open Android Project Kang has buttons and a bar that extend their functionality and can be customized to the max. Add more buttons, change the functions of these buttons, or be great with another application such as Nova Launcher allowing further expand its functions.
This bar also has some functions like changing the icons in the notification bar and the battery, date, phone signal, and many more.