I just wrote a little app for use with the Android / Google navigation, basically just a much quicker / more dashboard friendly way of entering addresses or postcodes into the sat nav. A big keyboard, with numbers on for postcodes etc. and once you type the address, it just goes straight into navigation.
Basically it is just a fix for something that annoys me which I guess might be useful to some other people. Oh and it is free.
It is called quickgo, just search for ‘quickgo’ on the market to get it.
It appears to work on mine and my mates phones, but do let me know if you use it / if it crashes all the time or whatever. Should work on Android 1.6 and later (i don’t think 1.5 had navigation).
Joe