It seems sort of cumbersome. You have to click "reply" and then type in your response, then click "done". Please. Why can't it know that I want to respond because I have clicked within the pane? Also, it is SO browser-based. It doesn't alert me (via email or text) when a new wave is started - I have to have my browser open. Maybe there's a setting - nope, just checked - that area is still under construction. But they have my email address! I know many people are making up new email addresses for this, but shouldn't there at least be a "email me at this address when a new wave is begun?" option.
I agree with http://paulbuchheit.blogspot.com/2009/11/so-i-finally-tried-wave.html and http://scienceoftheinvisible.blogspot.com/2009/11/google-wave-algorithm.html - that wave is part of a bigger plan. And maybe embeddable widgets will be the killer app.
Wave - as a beta, yeah, it works okay, but the concept is not up to speed.
