Nokia Ovi Maps?! I suppose Apple will change navigation software experience!
To me, it would be good enough if Apple created some basic navigation software that actually works properly.
I bought a TomTom about a year ago. It is _slow_. Sometimes it doesn't display where I am, but where I was a second ago. If you get on a roundabout, the display lags so much that it is really hard to find your exit using TomTom.
The maps are mostly decent, but several times I wanted to go to a location that was not directly on a public road, from say sixty miles distance, and it just says that there is no way to the destination. Instead of getting me as close as possible to the destination, it just says "no". So if all you have is a postcode, the only thing you can do is enter a very similar postcode (like AB12 3XZ instead of AB12 3XY) and hope it is nearby. Which isn't always the case. Sometimes the maps are rubbish; if you enter the postcode where I work, you end up fifteen minutes search away from your destination.
The graphics could be improved. What you see in their advertisements are the pretty graphics for motorway exits, which look pretty, but are just stored images that don't actually have anything to do with the way the exit looks like.
Lorry drivers can get a database of bridges with height limits. However, TomTom just uses them as "points of interest" and not as "points where your lorry is too high to fit below the bridge". Very, very clever.
The bloody thing doesn't know the time! Every GPS receiver _must_ know the time because it gets it from the satellites with about 30 nanoseconds precision. You still have to set the time yourself. Great.
The bloody thing doesn't know directions! It only knows where your car is pointing once you get moving. So if you start in your parking spot, enter your destination, it cannot tell you whether to turn left or right. 50% chance of going the wrong direction first.
I could go on and on and on. TomTom hasn't improved its basic software one bit in the last three years. About like Adobe with Flash, where they needed a major kick in the arse to get moving, and now they are moving, but it may be too late. TomTom hasn't started moving yet. Maybe if Apple releases navigation software that will give them the kick they need. Improving on what TomTom delivers is not very difficult.