Well, that's the theory anyway. See here for details. Apparently, v1.05(4) is a customised version of Google Maps for Mobile that takes your position from Vodafone's cell network. Except that it did nothing for me. Comments welcome if you manage to get it working on your Vodafone SIM-ed smartphone....

"Google has partnered with Vodafone to bring you an enhanced version of Google Maps for mobile that automatically detects your current location."