Ergh, I totally forgot to post about Bobba, eastercon got in the way. But here it is: Sulake's new mobile phone virtual world. Habbo for mobiles!
I have no idea what it's like as I own neither a Nokia nor an iPhone. Sulake got over a million people playtesting the idea but reviews are short on the ground so far. Seems that you can create your own spaces within Bobba though, and knowing Sulake there'll be plenty more creative things to do in the space. Roll on an Android version ;-)