Looks like TomTom are evolving
.
I have used TomTom personally for anout 5 years and think its great, although I haven't had much experience with other Sat Nav products, TomTom does exactly what I want - It gets me where I want to go and tells me where the speed cameras are. (for safety reasons obviously)

Recent reports show that TomTom have patented an idea to use a live video camera style device with the directions overlayed the live feed.

Sounds very interesting.

If ony they could spend some time and money on the support side of things, still, as they are based in the middle of the Red Light District in Amsterdam, I guess they have better things to do during their working day.