Awesome iPad 2 functionality

So I bought an iPad 2 recently (yeah yeah... I'm late to the whole tablet computing game).  So far, it's a really good device.  I do find myself having to come up with excuses to use it versus using my laptop.  I might have to force myself to keep the laptop in the bag for an extended period of time to see if I can go exclusively with the iPad.

On another note, some amazing functionality from some enterprising individuals using the iPad 2's front facing camera.  This is inspired by Johnny Lee's original head tracking project for the Wii (equally cool).  Apple and its developers need to find a way to incorporate this into the new apps.