Goodness me: GPS apps are popping out all over. This one is a REALLY good one from my first 5 minutes of playing with it. As far as I can tell it's the only free app that can offer spoken directions that actually works (nav4all doesn't meet that last criterion in my opinion).

Can't wait for GPS puck support. I don't know that I would stop using GMM, and I doubt if it can compete with Telenav if the goal is to someday charge for it, but it's quite cool nonetheless.