The only thing I don’t see that I would /crave/ for is the ability to run a second instance of the widget with a different twitter account, without messing around by installing a second instance of the plugin and changing all the PHP references.
I have a normal twitter and a gaming twitter, and shy of bombarding all my non-gaming friends with Retweets, I don’t have any other way of showing those in the Widget you guys have.
Other than that, I can’t complain. =]