So Google Wave finally goes public:
"Starting today, we are making Google Wave openly available to everyone as part of Google Labs. You no longer need an invitation to wave — simply visit wave.google.com and sign right in.
Journalism: Mashable used Wave to interview journalists on the future of journalism, and The Seattle Times experimented with a public Wave to develop their Pulitzer Prize-winning news coverage.
If you tried Google Wave out a while ago, and found it not quite ready for real use, now is a good time to come back for a second try. Wave is much faster and much more stable than when we began the preview, and we have worked hard to make Wave easier to use. For example, you can now get email notifications when waves change, easily navigate to unread parts of a wave, and remove participants added by mistake. We have also added permission management options and an extensions gallery."
I would prefer this technology in Google Docs, rather than separate app.