I fired them off an email awhile back asking what it takes to get on Greenhouse. They got back to me with the answer of a "quality game".
I'm most definitely a ways off from that, but it's awesome motivation. Some day I'll have the game they're looking for... some day.
Likewise, I don't suppose anyone out there wants to crank out some cool music for this project? I suck at cranking out music, but you could and then you'd be on the ground floor of this enterprise.