I love the term media games. As media production becomes a social activity, and becomes something we all do as part of our day to day lives, games will become places where we make new things, express ourselves, and share ideas. Check out the new Donkey Kong Jungle Beat. The game comes with a set of bongos that are the controller. Nintendo says, "Sure it uses the DK Bongos Controller, but Donkey Kong Jungle Beat isn't a musical game at all, tap the right bongo to make DK stroll right, tap faster and he'll run, whack the left bongo to go left, beat his chest or send out an enormous, landscape-rattling shockwave. Cool combos have DK swinging from vine to vine, climbing chasms by leaping from wall to wall and pounding remorselessly on enemies." Sounds like you'll be playing drums to me. I wonder if the DK Bongos Controller is available for third parties to develop games with?
I have this music and media production game I'm making where kids compete to mix and mash songs and videos. I pitched it to MTV2 in November. Their concern was how fast and cheap could we make a pilot. It's interesting. The ability to rapidly prototype large scale community interaction and multiplayer situations is going to be essential in this next phase of media and entertainment. (Social networking cycles on-demand maybe?) Either way, media games are going to be driving force of news, TV, and film in the 21st century- games where participants can make, watch, or do just about anything. And if you're working on things like this, or know of anything new out there, please let me know.