If positive feedback, why would not the trials start soon afterwards? Seems they've been working these requests for awhile now and would be in sync with FDA requirements right out of the gate. Just my personal opinion for reading their many press releases.
Coincidence that the Miami Project is due to start their trials early 2013 also. I read somewhere that the Miami Project will be getting 50% for the use of scaffolds in the future but I don't recall where I read it. If so (true) then why wouldn't they be joining together on these trials?