Has anyone tried the Trackmaster App for the Google Android phone?

http://trackmaster.trackaroo.com/welcome

Seems to have a lot of features and lots of good reviews. And a TCB bargain at $8.99. I've got an HTC EVO 4G so for $9 I think I'm going to check it out. If I come across a TCB deal on a 5hz bluetooth gps I may pick up one of those also as it seems to be highly recommended for AX use.