This is the answer to Moots vs. Waves. How do Google Wave and Yoomoot compare?

Yoomoot and Google Wave are simply different

To dust off an old idiom, it's like comparing apples to oranges. Google Wave and Yoomoot both try and to revolutionize the way people talk to each other. But that's an extremely broad category. Google Wave tries to draw on the tradition of email, instant messaging and chatrooms. It's trying to combine and outdo them of course, but it's the same basic idea. Yoomoot on the otherhand, is easily identified, both by the designers and the users, as a fusion of things like wikis, forums and comment pages.

These are fundamentally different mediums. Google Wave is one on one, or at most, a small group. Yoomoot on the other hand is more ambitious in that it tries to tie together people with no real personal history. To boil it down, Google Wave is about people, Yoomoot is about ideas.

Even if both were to take off and become absolutely dominate, I doubt there would be much in the way of crowding or toes being stepped on, because they simply occupy different continuums.