What are the advantages you see? We currently have a forum and e-mail list for offline reading and we have an IRC channel for real-time communication. I understand that Wave would be a merger of these two things, but do we abandon the IRC channel, the forum, and e-mail lists in favor of it, or does it just become one more thing I have to keep up with? Our forum sees almost no traffic because everyone seems to just go to IRC when they want to chat. I have a feeling that Wave would be the same deal and sort of a departure of what everyone is used to.
I do like the idea of Wave, but I think they made some serious mistakes in the way they implemented it that makes it much less useful.
If you'd like to start a Wave feel free to do so and we'll give it a try. It's very likely I'm wrong...it happens from time to time. ;)