This is Surly's fully integrated Xtracycle cargo frame. They have been long anticipated and sold out out almost immediately. Apparently, no more will be available until August, 2008.
We have a 20 inch frame in stock, ready to go. It can be built up in any number of configurations to suit your needs. Frame/fork -- $895.
Stop in and check it out. It won't last long so if you want it, act now.