From across the pond in the UK, Orange has lauched a nice experience to promote the new Motorola DEXT. The site lets users login using Facebook Connect, Twitter and MySpace and asks them 10 questions about their friends. It's quite straightforward but I like how the questions really make you think.
For the record, I only scored 3 out of 10 (pretty awful, looks like I don't need the device). But still, test it out. Very simple and well developed.