Just in case you were wondering whether there would be a clean-cut Twitter app for the iPad, that question has now been answered.  InfoXenter has released screenshots of the Twitepad application.  Twitepad allows you to filter content into columns such as hashtags, search results, lists, direct messages, and replies.  There is also a built in web browser so you can view the links that are sent by the people you follow on Twitter. [Twitepad via Mashable]