The reason audio only people show up as video in iChatAV beta (and the new AIM) is because you can actually send video one way now (they see and hear you, while you only hear them). If you turn off the iSight it works just like a regular audio chat, even though the connection button shows the video icon.
That was sort of what I was trying to say, that basically, what iChat shows isn't what you actually get (i.e., it'll show video-only even though it's sometimes audio-capable, and some times audio-only). However it's described, it's screwy and Apple ought to fix it before the final release.
Also, thanks for mentioning my scripts in your book.
Thank you for making them available!
Also, have you ever tried ohphoneX? I used to use it before iChat AV and it worked well. I'm thinking about trying it out with my Jabra...
That's a new one on me. I'll go check it out.