Not sure if it was already planned, and I would rather stuff you are working on implementing be worried about foremost, but it would be cool if there would be a little comment feed for each board, or a discussion tab or whatnot. Not only would it be fun to toss messages around while the collab is still in progress, like "holy hell, I can't even
imagine what could possibly be hiding under that tile's cover with crazy borders like that..." And after it's done, all the people that had worked on it, lurked watching it come together, and discovered it after it had already been completed could rave about the majestic spectacle that got blended together on this tiny corner of the internet.
Food for thought
