Meebo. It is the only IM app on the iPhone that I've found that is worth anything. Part of the reason why it works so well is that it does not maintain an acti

Meebo. It is the only IM app on the iPhone that I've found that is worth anything. Part of the reason why it works so well is that it does not maintain an active connection on the phone. Most IM apps fail as soon as the phone loses its connection for even a moment. Meebo keeps you as logged in on their servers, and then sends push notifications to your phone when you receive messages. The result is that you don't go "offline" when you experience any phone connection hiccups. Try it if you haven't. I use Google Talk and Yahoo IM on my iPhone all the time.