3 launched their Facebook phone in the UK today. See Guardian.
I got the chance to see some early demos of the phone, but not the final version. Really liked the concept that I saw. Will be interesting to watch and see how this type of interface works on a phone. I think it's more intuitive for the consumer than the PC analogies that have been carried over. Will be interesting to watch. I'm really excited about where phones will be in a few years when more of these social networking/graphing features are incorporated into the UI as 3 has done.