Exactly. At that time I worked for a large educational institution that was introducing online learning (hot topic those days). When I read about Google Wave I

Exactly. At that time I worked for a large educational institution that was introducing online learning (hot topic those days). When I read about Google Wave I said to myself - it looks great, we are ideal usecase for it. I asked for invitation explaining who we are (very big public edu institution), what we do, how much users we have (thousands), etc. But, obviously, my e-mail was ignored. Finally, after more than half a year I finally got the invitation, but Google Wave was already ridiculed by those invited earlier for its slowness and messy interface, we have chosen other software solution, so I haven't even checked what it can provide. A year or two later Google Wave was "opensourced" and "donated to the community", so I was very happy I didn't invest more time investigating it.