I would like to see:
1. an anti-reflective screen similar to the ones the modern book readers have.
2. More aggressive approach to map completeness. . I've owned a TT for 3 years now, and they still don't have a road that's been around for 5+ years. (even though Google, yahoo, and AAA maps do list the road on their maps...)
3. I'd like the screen to keep up with the car. We were traveling at 30mph (The posted speed limit), and the TT seemed to be lagging about 100 feet behind our actual position.
4. TomTom home: It needs to be changed. It's slow. Very slow, even with a high speed connection. (e.g. "searching for updates") takes a very long time. I can leave my computer, go down stairs and make a sandwich, and it will still be searching for those elusive updates when I return.