With wifi, the maps works fine. In the car is a different story. I had a hard time finding my location and could not get directions and navigate. Isn't the gps capable of this? If not, why bother with maps? Anyone have a thought or different experience?
Like already stated you need a data connection for the maps.
You can use tile catching.
With a WiFi connections set your destination and let MAPS calculate your route,
it will download all the map tiles necessary. Off you go and it will navigate you to your destination
even after you have lost your WiFi connection.
Only drawback is you cannot change destination unless the new destination is within those map tiles
Also that is why I have CoPilot, it let me download and keep maps on the TF itself foe occasion
when I can't get data connections (usually I'm tether to my N1 if necessary)
This issue should be resolved in the upcoming months, google announced that they will soon be offering a free offline version of their maps so you will be able to take the asus transformer on the road without the need of a data connection whether it be cell or wifi.