Yeah, that won't change, but after re-reading my post, I can see how it might appear that you can only participate if you're on Google+. That's not the case. You can certainly comment on the call, and you can type in the Google chat. Really the only difference now is that we're using Google instead of Yahoo IM, which is what we used to use for BS/BT (I don't remember ever using the LGM chat room for this, but ICBW). Google allows us to do the same thing we did with Yahoo IM (and with Skype), except with the added feature of video. I, for one, will be on both the call and the vc. My recommendation is being on the vc if possible, because I think being on the call only you might miss out on whatever is typed in the chat, but that's the same as it's always been. That's not new.
Those who want to call can call, those who want to vc can vc (the vc also has the use of avatars, so your image doesn't have to be shown at all, if you don't want).
I can't remember a time where there was ever more than 10 of us on at one time, so it's a really informal setting and I can't remember us ever having a problem between the phone and the YIM chat room. Hopefully things work out as smoothly tonight.
**I'm editing that post so it's a little clearer**