Lisa and I (Lisa in NJ, I in Seattle) got my mother in law set up with iChat AV and Timbuktu this weekend. Now we can talk in crystal clear CDMA-format audio, and we can watch her screen if she calls with a tech support problem. To which I say: Nifty. (We tried the audio chat built into Timbuktu first, but gave up: static-y, and half duplex—stepping on each other’s words—doesn’t cut it.)
Speaking of half-duplex, it appears that audio chatting with iChat AV degrades to a one-way conversation if one participant is on broadband and one on dialup. Thanks to Greg for trying the experiment.