Sounds like a plan. I've compared the Motion X GPS and the Navigon. Navigon is a lot more refined and has cool graphics but it takes me through St. Louis to get to Little Rock. That's just a little out of the way. Neither have decent trip planning so it's pretty much a "get me to there from where I am" type of navigation, no way to pick a starting point. There will be updates to both apps so I hope Navigon works out the bugs. Motion X gives good routes and they are very close to what Google Maps gives for the same trip.
Can't wait for LCG. This will be a nice stop over.