1. Take a photo using the app (or add an existing photo to the app) on your phone - this is called "PlaceMe"
2. Upload to GyPSii website with location attached (using GPS)
3. Check out what's around your current position ("Search") or where your GyPSii friends are ("SpaceMe"), see them on a map, share Places with them, etc etc
4. Log in to http://www.gypsii.com when you get home and check out what's going on in the rest of the world, or edit your own Places
The software is downloadable at http://gypsii.com/m (there's also Windows Mobile software)