Tweetbot's been offering a rough-around-the-edges alpha version on its upcoming refresh for a few weeks now, but it's the latest update that's caught our attention -- again. There's several substantial changes that could tempt you away from other desktop Twitter clients. These include a new multiple account view, with separate columns that can either be docked to your main feed or left in their own window. You can spin out mentions and search results into their own space, a
