Twitter for iPhone isn't your early adopter, power user app. It's not designed fro the gadget nerd with tons of followers who engages in non-stop repartees with like-minded friends, peers, and colleagues all day. It for the new mainstream Twitter user who has very few followers, follows tons of celebrities, and is looking for more and better ways to find something... anything... to do on Twitter. Like it or not, since the last redesign, that's the the official Twitter app's target user now. And that's who they're improving things for with this update.