I had to chime in. I bought a 2008 urban runner with the tomtom over a month a go
The tomtom is better in almost every way to the regular toyota nav...
I upgraded to a 2GB SD card of a premium brand and then found updates on the web to bring it to version 7 with text-to-speech. Use google to search for the 7.831 update. It took a lot of searching, but I was able to get the kate computer voice with the 7.831 working.
So far I've had no issue with the card being corrupted.
Some features on the tomtom that the regular nav lacks:
1. text to speech, they read the street names
2. Infinite voice options (the regular nave only has 3 languages)
3. Customizable color schemes ... I like the garmin scheme.... high contrast for day use and the arctic is geat for night
4. Mapshare data (map correction from other users)
5. Downloadable POI... I got the bank of america and trader joes ones now their logos show up on the map whenver there is one near by
6. 3d maps, (I couldnt find a way to turn this on in the regular toyota nav)
7. Better plotting and find alternat route and find near destination and fine along route (didn't see any of these features on the regular nav)
The only feature the regular nav wins on is the larger screen size.
Things I dont like about the eclipse stereo are the lousy radio reception and cheap buttons. All the buttons feel like they will fall off...
Anyone who has the regular nav system please correct me if it has any of the features I couldn't find...
regards...
Rob