What is it: Zork, a text-based game, was first released in 1980. Essentially, it hearalded the way for interactive fiction and storytelling via digital gaming.
What the Community Gets: A trip down memory lane and a piece of gaming history. Plus, an actual gaming use for the Chatpad.
What Microsoft Gets: A second round of marketing for the Messenger Kit. Surely it couldn't take THAT much effort to convert Zork to an Arcade title? Would definately generate more interest and noise from the gamer community about the messenger kit than any magazine or web ad would.
5) Zune Store
What is it: ok, so it wouldn't really be an arcade game, but more of a utility. If I can stream any song I want to my computer when I have a Zune Pass, and my Zune Pass is tied to my GamerTag... why can't I straight stream via the XBox, too?
What the Community Gets: A great way to create playlists on the xbox for background listening. Just load up a playlist from ANY song on the service, save it, and the Xbox become the center of any party involving music.
What Microsoft Gets: More Zune Passes sold, and deeper integration between the Xbox and Zune communities. If you have the Zune software installed, Microsoft could push you playlists for the music of any upcoming game easily...