I think, i am becoming jQuery fan day by day. If you have an iPhone or iPod Touch or iPad, try this url in your browser:
You will wonder for some minutes. Yes, it is not a application, it is a website and every action is created by our dearest jQuery using jQTouch library
This is the official site of jQTouch: http://www.jqtouch.com/
Wait for my post about integrating jQtouch in PhoneGap to create iPhone applications within minutes.