What Navigation program are you guys using???

[splautz]

Is there a hack for Sprint Navigation? I remember a few years back finding a way of hacking it on my classic Samsung A680 dumbphone. It required downloading the hacked app with a specially edited java config file. It worked great, but then I got rid of the phone. I wonder if something similar could be done on the Intrepid. If not, I'm looking at using Garmin XT. Anyone get that working on their phones?