I dislike how aim and all the other chat programs kick you off when you exit the app. I know aim keeps you logged for an extra five minutes woohoo. Well from my experience and reading beejive keeps you logged in for up to 2hours after you exit safari. It's web based but still good. It doesn't notiy you when you have a new message but hey it's an improvement. Any one else fond any good chat apps or web based ones?