Original Post
When I got my 360, it came with an absolutely free bit of uselessness: a headset. Useless because I'm not a fan of the online play scene, and because outside that particular arena it has no reason for being. Or does it? The headset represents, to me, something consoles haven't had since the Dreamcast (and there, barely at all): side-channel communication. Suddenly, the game has a way of telling you things without telling them to the guy sitting next to you. It's not a very broad channel--for instance, you couldn't really use it to play Catan locally--but it's there. It's like the GM in a tabletop gaming session slipping you notes. So, brainstorming session: what can be done with it? How can it be used to meld cooperative and competitive gameplay?