I have seen quite a few posts on this topic.
I bought an Asus P527 and downloaded every GPS program I could find; 10 total.
I found TomTom to be the best.
I downloaded a few versions and bought a copy as well, tweaked them all until
I found the right combination of files to work on my HTC S620 (T-mobile Dash)
I first tried using Kamlex VirtualGPS 1.47
We all know it is an ok program but you cannot really use it for navigation.
A Bluetooth GPS Receiver works great!
Download the Rar file and Unrar on a memory card, use the directory structure-
X:/Program Files/Navigator

All New Maps Can Be Found Here
North America 830.2283Part 1-14 1.80GB
USA and Canada 830.2322 Parts 1-7 845MB

TomTom 8 Smartphone

TomTom 7 & 8 Map Meta Keygen