Track My Hack App

I know I have several fellow eventers on here and other riders who do a lot of riding out and hacking who might find this app cool and exciting! I just discovered it and have yet to use it, but it sounds like a neat concept and I'll definitely be trying it out just to see what it's like.

http://www.woofwear.com/apps/track-my-hack

If any of you guys end up using it, you should share your thoughts on it and how you like it with the rest of us!