Thanks for the feedback.
Google Earth may have been available for a long time, but what surprised me was that there wasn't yet an app that can create flight paths. It is not the same as moving the view with your mouse. You can't visualize a 3-deg glidepath, or what a turn radius inside a canyon looks like.
I am a big believer in using everything possible to armchair fly prior to a real flight. I used to fly in these mountain airports back in the 90's, and I wish I had these resources back then. Flight sims are great, but we are not always interested in the 'flying' part of the a sim. If you just want to see the terrain without having to fire up a simulator and joystick, Google Earth is great. Besides, these are based on real satellite imagery with 3D reconstruction, and is far better than anything on a sim.
I also put some of the screen captures of the flight paths on youtube (with links next to the examples), for those not inclined on typing routes on a keyboard.
I was just interested in trying something new. I am not peddling any product or service, nor am I entrepreneurial, so the comment about it being not ready for prime time was out of left field.