Are we waving hello or goodbye to Google Wave?

So, a short and sweet post today.
Google Wave - that much vaunted breakthrough, disruptive technology that will change the nature of communication. Does anyone who has actually used Waves and has been in the industry for more than 5 minutes not have an underlying sense of DeJaVu?
From all the bumpf, all the rhetoric and hyped 'alpha launch' I get a distinct sense that Waves are just simply Sharepoint portals...just far better pitched at the 'consumer' and better overall marketing.
I'm awaiting my beta invitation, but from all the material that I've seen and read, I just don't get the feeling that this is a game changer, but I have been wrong in the past!!

