Well, Foursquare lets you see little comments and tips that people have left pegged to locations in London. You too can leave these tips reader, call them geo-tagged tweets if you will. Like some kind of game, you get rewarded for leaving more tips by being given badges. You set up a minimal profile, and add friends and can also contact your friends over the service.
INQ is working with Spotify on the phone which will be available via the Swedish Telia network. If the phone is more than vapourware it is a dead cert that it will end up being sold on the 3 network too like other INQ phones.