Show HN: MifDif, solving the "Who goes first?" problem in negotiations.

I would appreciate any feedback on my little project I put together over the weekend.

www.mifdif.com lets you start negotiating a price without either party needing to reveal their starting positions. Suppose you want to sell something. Just start a session as seller, enter the lowest price you would be willing to accept. You are the only one to see that number. Mifdif then sends back a session number that you give to the other party. They join with that number and put in the maximum price they are willing to pay. They are the only one to see that number. Mifdif then replies to both parties whether a deal is workable or not.

I recently took a new job and had to negotiate my salary. What I hated most was getting the first number out in the open.

Hopefully someone here will find this useful.

Thanks