I finally started DataHaven.NET Market Place. Now you can buy and sell DHN credits for BitCoins. In the program go to [menu]->[money] and click "BUY/SELL DHN credits for BitCoins ...".

You need to run the latest software version to have this feature enabled.

Here you can see all bids and offers : http://datahaven.net/market

Now you can gain some BitCoins by providing HDD space to DataHaven.NETwork. You accumulates DHN credits when other users takes a part of your HDD. Than you place an offer on the DataHaven.NET Market to sell your accumulated DHN credits for BitCoins.

People who want to have more distributed storage to backup their important data spents DHN credits to rent HDD space from suppliers. They need to place a bid to buy DHN credits for BitCoins on the Market. 

Matched bids and offers will be executed and both sides gets the exchange.

Please contact me if you found and bugs or have a questions.