Ham: What apps are showing off the iphones new functionality? I'm waiting for a decent IM app.. Has anyone found any good ones?
Unfortunately Twitter, IM and IRC apps cannot update statuses in the background due to limititations of the iOS 4 APIs. They can only check for updates in the foreground and that’s how it’s going to be for a while. The only workaround is via push notifications which can alert you of new messages when they arrive.
tomgeeknz: The closest I have seen is eBuddy with push notifications. I use it.