I'm glad you like the app Tim, thanx for the kind words!!
To answer your question above, in the video shown in this first part of my post, the app is tracking guitar movement, regardless of position or direction. If you check out part 2 of my post (that will be published tomorrow, i think), I'll be showing another video where the guitar's position is being tracked in 3 separate axis. Both kinds of tracking can be combined too
Cheers!
Nico