The drag-and-drop file sharing, with inline preview, is pretty amazing. I wish Adium had that.<p>I really dislike the rest of the UI though. One <i>very</i> important thing about Adium is how compact it is. Even on relatively small laptop screens you can just leave it in a corner, which makes it easy to hold conversations without having to break context.<p>The conversation list, and the conversation views themselves, feel very much like the much-maligned "gigantor" Skype update from a while back. Everything feels much too big, much too spaced out, for a pure utility app. IM isn't an "experience" app, it's about as utilitarian as computer use gets.<p>The "smart command line" thing is very cool though.