Google Navigation was announced to push location aware applications on Android one step further. Beside Google Navigation Google Maps Mobile is still the major location based application on Android (also because of the lack of Google Earth for Android).
The new version of Google Maps mobile is called 3.2 and include several new features like layers. Layers allows to add traffic, satellite, latitude, wikipedia, public transport or my maps on top of the basemap. Google maps 3.2 is part of Android Eclair and can only be used on HTC G1 or Magic via a custom rom (yet). You can download a custom rom including some instructions here.
An update via the Android Market should be available soon.
