Just a quick hit here, as the update isn’t a huge deal. However, for those of you who love the official Twitter client for Android, it’s a welcome change.
According to the Twitter Help Center, the new update will finally give us Auto Refresh, and fixes a bug with People Search. The new release is supposed to be faster, as well.
Version 1.0.2 is what you’re looking for, in the Android Market. If it’s not there yet, it should be soon.