Your Location without GPS
The blogosphere have widely covered the release of My Location service for Google Maps for mobile. It uses GSM cell tower identifications to provide an approximate localization of a mobile device. Thus it is posible to develop Location Based Services in mobiles without GPS. Google also has announced the two ways to use these new functions programmatically, over the Android OS and with Google Gears for Windows Mobile.
The following video explains this idea:
But this idea is not new and perhaps it is not the best option.
