Samsung Highlight TeleNav

I haven’t seen it mentioned yet, but I just got the Samsung Highlight with T-Mobile. I really like it and am looking for gps software. I had TeleNav (att nav) on my previous phone and heard that they just released it for my phone on T-Mobile (http://blog.telenav.com/blog/2009/07/telenav-gps-navigator-now-available-on-the-t-mobile-samsung-highlight/). Anybody have T-Mobile with different gps software? If yes, how do you like it? Also, anybody else have the Samsung Highlight?