Twitterific is probably the best Twitter app on the iPad. But you've heard all about it. The nicest to actually look at? One you haven't, a little app called TweetFlow.
Two-dimensional and cartoony, it eschews gradients and faux dimensionality for a refreshingly flat aesthetic. The app is pretty basic, but it's super easy to use - having ploughed through nearly every iPad Twitter app in the App Store, it's mind boggling how complex some of them have become - and just as importantly, it's free. [iTunes]