You might've thought that Google was positioning its industry-changing Google Maps Navigation as a value proposition for Android 2.0 and beyond, but yeah, not so much -- instead, they've gone ahead and backported it to 1.6 (alias "Donut") which means that T-Mobile's myTouch 3G and G1 plus other 1.6-equipped devices across the land can get in on the action. In the case of the memory-starved G1, that's especially surprising, and a heartening sign that the world's first retail Android device still has some fight left in it. It's available from the Android Market now, so go ahead -- try to get yourself lost. We dare you