Pros Small, long battery life
Cons Not accurate. Pairing/Satellite Problems
Summary This device was purchased to go with the blackberry worldphone. It was paired with the device successfully and worked on a few occasions. However, most of the time the device would take over 15 minutes to link up with the satellite. By that time I had already stopped to ask for directions. Cusotmer service (TeleNav) was almost non-existent. However, I will say that they were amicable to refunding me the entire purchase amount after the entire ordeal.
Pros Small, Good Battery Life
Cons Occassionally slightly off course
Summary I really like this thing. I took it to Ireland and used it with google maps to navigate around. You don't need AT&T's GPS system to use it. On rare occasions it will tell you you're about 40 feet away from where you are on the map, but this is rare and not a big deal. My biggest pet peeve was that I had to hack my T-Mobile Dash to get it to work even though Globalsat says it's compatible. Now that it works though, I'm very happy with it.
Pros Long lasting battery, includes wall charger, and car charger adapters, small
Cons The rubber on the bottom of the device is suppossed to keep it on the dash, not so much.
Summary This is a great buy, the accuracy is outstanding, and I have never had an issue syncing it to my device. I rarly need to charge it, but with the lighter adapter, and the wall adapter when it is needed no worries. The cable is a standard USB to USB mini. Though I don't use any aftermarket products on my dashboard, except cleaner, and the device will go for a ride around a sharp corner.
Pros Linked up and worked well small size and price to add GPS capability to my 8320 Curve
Cons none yet other than little information available to set up kind of trial and error
Summary Set it up (bought used on e-bay) and linked in my kitchen to satellite.Programed in a Winery address 31 miles from Portland Or out in the country. I had been there before using more "main" roads. Google Maps and BT-159 took me on roads I didn't know existed right to the front door and back really smooth