How to make menu like ipod drill menu?

How to make menu like ipod drill menu?

Hi,
I want to make a menu (not drop down) which will be of 100% width and height just like ipod drill menu. Can anybody know about such sliding menu and drilling down to each item..??? Or please guide me how to change this one to achieve my preferences.
I want:
menu options (not in a drop down)
slides left into subcatogaries on each item click (like windows media center menu)....