Got my invite for Google Wave today, and played around with it a little.
It's hard to judge it that early, and I only participated in public
discussions, no private ones.
Right now Google Wave feels somewhat messy to me, the combination of
wiki-like features, chat and forum (threaded conversations) is somewhat
confusing. Maybe this is just at first.
The way the conversations are presented in the inbox seem to focus a lot on
the topics, less on the people. People are only presented by their picture,
this could become very confusing, if someone changes his/her picture.
Also I think the direct combination of wiki and conversation doesn't work
too well. Some content is wiki like, should be updated, should be somewhat
permanent, like a packing list for a camping trip, other content is pure
conversation. The more permanent content has the same weight as
conversational content and has no extra indicator that it's there to stay. I
think the paradigm stackoverflow.com uses, works better for the combination
of information & conversation.
What do you think? This is as said a very early impression, as I haven't
done too much with google wave yet, and also don't forget how young this
product is, it will still evolve. That said, I see huge potential in the
plugin structure, for example think of tools to fix a date (like doodle.com)
embeded direclty into the conversation.