I think Wave's biggest obstacle was a clunky, slow interface. The concepts are quality, it just needs a real UI.
When was the last time you used it? Wave is not slow currently.
Yeah but that's part of the problem. They released it, it was slow and clunky, and that turned everyone off. OK so they made some improvements, but they probably should have done that before releasing it and turning people off :)
I just logged in, it still lags behind as I type.
What browser?
It can be slow on FF3.6, fairly fast on Chrome.
Wave today is nothing like it was supposed to be from their presentations last year.
I wish you could buy a Wave appliance or Wave server to run behind the firewall. I think it could make a killer enterprise collaboration tool. Much better than kludgy crap like Sharepoint, etc.
I also still think that Wave is cool - as a development platform.