In reply to:

I've seen navigation solutions with much smaller screens at lower resolutions. You only need an arrow to guide you and a distance to the next intersection, maybe a voice saying "turn left NOW" or something. I also don't see a problem in entering the destination address. I mean we have a rotary encoder and a remote control....



Uhh GPSApp already does this... and I thought some people have gotten it to work with European maps... the solution is already within your grasp so to speak. As far as entering the destination address with the rotary encoder... well it doesn't sound like much fun to me but I suppose it's possible.