Compiled list of questions before i flash:

Did you have to call Verizon to authenticate your phone again? I had to when I flashed my phone a few weeks ago.

For GPS software...I have actually been liking Windows Live Search. It is a bit clunky to use, more so than Google Maps but one thing it does do is give you turn by turn with audio notifications of when a turn is almost there. It will also recalculate your route if you go off of it.

The thread in the main Titan forum has a bunch of options as well, both free and paid.