As a F/OSS freeloader, I would very much like you a link to this project... Feels like something I'd contribute to or do something crazy like try to start a business (2ndquadrant/edb style) on.
Thanks! I didn't realize I put the link. Here it is, http://github.com/thomas4019/pgmongo. I'd love to hear your thoughts on it and am happy to answer any questions.