After a long time in limbo, fan favorite desktop Instant Messenger (IM) client Trillian [$4.99 - iTunes link] has finally (finally!) arrived for iPhone and iPod touch.

Features include AIM, ICQ, Windows Live Messenger, Yahoo! Messenger and Google Talk, tabbed chat windows, clean contact lists, killer connection management, instant cross-device sync (via Astra server), simultaneous sign-in, and "intelligent" push notification.

Confession: I've been podcasting, now I'm editing, so I haven't had a chance to try it out yet, but if you're giving it a go, please let us know your favorite features, pros and cons, and just in general -- what you think!