I've only just recently discovered this game, but it seems to me it would benefit hugely from some sort of mobile app—something to update me when I've finished learning a skill, or if I have a friend who wants to talk to me, etc. The mobile site allows me to start learning a new skill, but the interface seems pretty buggy [at least on my iphone's Safari] and there's no way for it to 'badge' itself when a skill completes. While I'm not a proponent of mobile gaming, I think a sort of mobile updater would be really nice.
What do you guys think?