Or iPhone OS in general... A proper IM client that is free (w/o jailbreaking). Meebo IM. Enough said. It has every social networking IM system built in it and is free w/ push notifications. You have to pay $5.99-$9.99 on the iPad to get an experience comparable to Meebo. I own both and this is just my own little rant wondering why anyone could or would charge for an IM app.