Sorry for getting on you nerves. 0:-)
To speak for myself, I'm not a programmer, but I try to do what's in my power to help you to get real-time navigation working with gpsapp. If I can support you by sending money, I will do so (but keep in mind, I'm still a high school student ;-)
At least I post what I think might be usefull. Sorry again.

I thought the problem is to interface the data and the pathfinding algorithm is relatively trivial. I don't understand that a TeleAtlas CD suffices for a car navigation system and we can't use the information on that CD. Also I don't understand why a car navigation system can do the route finding in a few seconds and we can't? Do they use better CPU as the StrongArm?