Although I do like the Garmin for the Blackberry, I still don't want to rely on my cell phone for GPS. Somewhere along the line on a long trip, I always lose service.

Garmin for the BB is not the full Garmin interface. Unless things have changed recently, area and road avoidance aren't there and you can't click on a traffic icon. I don't recall the detour feature there (but it may be, I only used the trial) and when it rerouted for traffic, it didn't give me a pop up screen.

I have Garmin for Windows Mobile as well as a stand alone unit 2730 (?). With WM, the maps are on a SD card which is much better; it uses data for traffic, weather, searches. I use that as my primary GPS although it doesn't seem to get a signal as fast as the standalone.

I think the perfect Garmin device would be a standalone unit that connected to my phone via bluetooth for data.

Blackberry Maps doesn't come close to Garmin or Telenav. I'll typically use Google Maps if I need directions and don't have a GPS.

Regards-Michael G.