Can you think of a better mechanism for seeding a finite number of slots to social clusters than giving everybody X invites to share? From what I hear, the peo

Can you think of a better mechanism for seeding a finite number of slots to social clusters than giving everybody X invites to share? From what I hear, the people at the start of the chain have nearly all of their friends on Wave, while the people at the edges (us) have only 10 or so at the moment. As more invites go out the system will get more useful for us Although I have many questions as to the actual utility of wave, I don't think the invitation mechanism is really at fault.