IM+ 3.1 [$5.99 - iTunes link] has hit the app store with support for push notifications. We wrote about the new version a few days ago, and for those longing for IM style push Twitter support (yep, Twitter can work via IM, and IM+ can push notify you of DMs, @mentions, etc) it's worth checking out.
Our only question -- Is this beginning of push twitter tennis?
If you try it out, let us know what you think. And if you suddenly have a big old 99 new messages on your app badge, let us know how that works for you too!
[Thanks to Icebike for the heads up!]