[magoo66]

Yes, if you just got the phone and haven't done anything to it, there are several new radios, actually. The newest 2 are from sprint and alltel. Both enable gps and rev-a. The alltel one is slightly newer, and reportedly has faster satellite locking times (good thing), but that still seems anecdotal, and may just be placebo.

Either way, there are really good tutorials for upgrading your phone. You'll have to unlock, get a new radio, and get a new rom. Check the stickies in "HTC Titan Upgrades" for good tutorials. If you follow the directions, you shouldn't hit any snags, but if you do, keep reading, then post your question if you can't figure it out.