What is a good, free gps program for the Blackberry Curver?

I have a Sprint Blackberry Curve 8330. The preloaded gps is horrible. It doesnt tell me to turn until I get right to the place I need to turn at, giving me no time to actually make the turn. Does anybody know of a good turn by turn gps for my Blackberry?|||Unfortunately I never found one. I tried using Google maps, but would have been better off using a real map because it was completely useless other than showing me a highlighted route.|||Google maps is the same way. It doesn't even tell you where to turn. It simply has a dot that shows your location on the map. Interestingly, the maps in google are in desperate need of updating, so sometimes the dot indicates you are driving where there are no roads! I think we're all going to just have to live with it, until the technology updates in about ten minutes!