If you're getting the 3G edition just for the GPS, the non-3G Transformer has a full GPS too, you know. You just need the maps; either cache them through Google Maps, or download a GPS app with maps.
I have it myself and it works flawlessly. You can track yourself easily.
Thank you for your quick reply, I have heard that a A-GPS (like on the tf101) need a wifi connection ? I'm confuse....
If the non-3G Transformer has a full GPS too...you will make my day !