Wii Warm Up: The coming 'surprise'

Possible megaton alert! Cue the excitement -- or the yawns; your mileage with these announcements-about-announcements may vary. NoA President Reggie Fils-Aime dropped a not-so-subtle hint that we'll be seeing something special on our Wiis come September. A surprise, and just for us! He even says it'll be a good surprise; awesome, says us, because that's the best kind. It's probably not the Check Mii Out channel, because he was talking about that in the same breath in his interview with Game Head's Geoff Keighley. So what could it be? Perhaps an early peek at WiiWare? Some of you thought such a thing could be possible (though not quite that early). A channel we haven't heard about? Maybe demos? Get your speculation on.