One of the most exciting parts of the Motorola Droid launch was the inclusion of Google Maps Navigation, a free turn-by-turn GPS system from Google. At first the feature was only compatible with phones running Android 2.0, which is only the Droid. Today Google announced that it would be moving the nav system down to Android 1.6, opening up the service to phones like the MyTouch 3G and G1.

I’d call this a big win for Android users. Until this update the hope was that some enterprising developer would hack the thing down to 1.6. This still leaves out the Motorola CLIQ and HTC Droid Eris, but hey, it’s better than the original situation. The 1.6 release also adds layers, allowing you to overlay information on the map, like Wikipedia articles on local points of interest and public transit lines. The one thing 1.6 is missing is the “navigate to” voice command, so you’ll have to enter everything by hand. Life’s tough, isn’t it?