Looks like fun!
Just a tip: when you're shooting a panorama, you'll always get better results if you pivot the camera's lens in place, rather than holding the phone at arms' length and moving it back and forth.
http://www.youtube.com/watch?v=svVq7dx_pDY&hd=1
http://www.youtube.com/watch?v=6XYSJPbwBT4&hd=1
Cheers!