Butttt... since your question is just and that thing is awesome, I'll go ahead and answer you.
As far as I know it was only a design study being done by a project team at MIT to be unveiled at the world climate conferences in Copenhagen. Cool as it is, there's been no word on actual production or sales.
Best bet is to get crowbar in hand and break into the MIT labs. You might not even need the crowbar... I hear they leave the front door unlocked sometimes.