I'm in the process of trying out Google Wave - It looks interesting, the functionality kind of reminds me of Lotus Notes in the mix of email, collaboration tools, document management and instant messaging of course the implementation is way ahead of Lotus Notes but this is just a very quick first impression on my part.

BTW: I started a public OOMA Google wave which appears to be the only public OOMA Google wave (are there any private ones going on?)- of course being a wave you need to have participants so if anyone is interested in testing out Google Wave along with me then just add a comment (to be clear, you don't have to join the OOMA wave discussion to get the invite). I have only six invites at the moment (sorry) - if I get more then I'll say so - but first six comments get them.