iPod touch Best Utilization of Hardware Features?

The Touch has a Multitouch screen.
The Touch has wifi.
The Touch has motion, tilt, rotation sensing.

Which App, of any you have tried, does the best job at utilizing the full range of hardware featires of the Touch?

I'm looking for a really good demo program, that truly shows off how amazing the hardware really is.

Suggestions?

AceFernalld said:

Safari.

Click to expand...

Ok, multitouch a little. It also rotates when you tilt the screen. We know from the piano app that at least five touches are detectable at once. I've also seen other apps that make more refined use of the tilt sensor.

Any other ideas?