Eh?

I tried to use it once but never understand its functionality and still don't know how it works actually.

Wave is (was) pretty awesome, the problem was it was jack of all trades and master of none. It worked very well for collaborative work, however, groups want to collaborate to write documents or spreadsheets etc. Wave isn't a very good word processor which means users have to use some other program or web app to collaboratively work together.

Further, why would I want to chat in the web browser when I can already use msn, skype, irc, etc?

In the i/o conference they mentioned that bloggers could write posts as a wave which others could connect to, comment on and keep track of. None of this functionality is currently available because it is only offered in the wave app. Shame, cause this would have been great to see working.

Lastly, why would any one want yet another email address or another form of communication? Communication overload. It's a shame they have discontinued wave so soon without even attempting to address its issues.

Yes, I like Wave a lot. During the group assignment at the university, we use Wave. It gives lots of possibilities, which other sites do not give.

To Google developers, why do not you just forget your idea of discontinue this site. There are many many users, who actively use. Why do not you advert more??? I am sure, it will attract millions of people, not even thousands.