That's a very interesting idea. If you could get a reasonable number of domain holders who have somewhat valuable names that aren't being used to buy in then I

That's a very interesting idea. If you could get a reasonable number of domain holders who have somewhat valuable names that aren't being used to buy in then I think you have a good chance of some success. Naturally the biggest concern would be that one of the parties will break the terms of the agreement at the most inopportune moment, and protecting from this is going to be the biggest concern IMO. I'm sure there are other issues as well, and I look forward to hearing what others say. I hope that you'll give it a go though, it really does sound like an interesting idea.