Version 5.5 is WAY different than 5.1.

It made me remove version 5.1 because of a file by the same name, but that is no biggie.

I actually have the T-Mobile Curve 8320 but downloaded AT&T navigator for the 8310. I haven't driven with it yet, but here are features I have found that are new:

- Voice Recognition for entering addresses or finding searches (works great!)
- Auto (or manual) day & night mode <--- this was MUCH needed
- Volume seems to be a little louder and clearer - there is Very loud mode
- Now it shows a big arrow on the side of the screen indicating direction of - next turn
- You can now get the current weather of where you are or anywhere else
- Your favorites are sorted by the categories that you created online (well, I did mine online anyway)
- You can share addresses by entering the phone number of somebody else
- The fonts seem to be a little bigger too
- There are many more "choices" of where to drive to as in city, business, airport, intersection, contact, etc.

This came at a good time - I was about to give up on Telenav and go with MapQuest. If routing is good, I will stick with Telenav.

Although, I will still have to try ALK's CoPilot which is coming for the Blackberry at the end of May. It will be a 6 month free trial from ALK and CoPilot (which I used on my Laptop when version 9 was out) is a SUPERIOR product that I know of. It lets you avoid streets and customize routing, etc in more ways than you can imagine.