New versions Roadmap- the program I've been merging with GPSApp- does have support for saying the names of roads at intersection. Unfortunately it has no route finding/following engine yet so it might be difficult for it to say "turn left" etc.. but that should be a possibility for the future

I am going to merge GPSApp with a new version of Roadmap soon but Roadmap releases have been pretty frequent so I'm kinda waiting for them to stabilize.