Interesting. Is this at the point where one could just buy a slice, run a server, and play around with the client or is Google holding some piece back until they open up their implementation to the public?
<a href="http://code.google.com/p/wave-protocol/wiki/Installation" rel="nofollow">http://code.google.com/p/wave-protocol/wiki/Installation</a> instructions just went online
I hear people saying oh great that will replace eMail.. don't think so. M$ and others tried that and failed, why should it be different now? Google will try to keep a crucial piece of the pie like M$ does with the .NET platform.