Faruk Ates explains what iPhone Twitter applications have wrong, and why he still uses the mobile Twitter web page: it’s about speed and tweet density.
He’s right. I’ve given up on dedicated Twitter applications, for exactly these reasons: the mobile Twitter page is faster than dedicated applications, and shows more tweets at a time. I’ve looked at Tweetsville and Tweetie, but I don’t see anything that makes me want to use them; in fact, the iChat-style tweet bubbles, because they take up useful space and aren’t all that attractive to me, are a reason not to use them rather than a feature.