Mobile AIM - IM Forwarding
They sure are! I registered my cell phone with it last night and now I get messages on my cell when I'm idle or offline in iChat. One more reason to love my cell phone plan with Fido... I have unlimited incoming text messages. :-)
I could have used this over the last 8 months at school, once I'm done my final exams I'll be tethered to my computer full time again until September. At least I know I'll be able to say, run an errand and still get IMs. Unfortunately I can't reply back through AIM using the cell phone, but IMHO this is still a huge leap forward.