Guess that September surprise!

[JMan]

Keighley: We've been waiting politley for some more channels on the Wii, you know WiiConnect24, all this excitement with this blue light that was going to come on, there was going to be surprises, especially on your birthday...

Reggie: They're still coming. You know we announced at E3 a new channel, the Check Mii Out channel, and we still have plans.

Keighley: Do you have anything for this summer?

Reggie: Well, the surprise is coming.

Keighley: End of the summer?

Reggie: The surprise is coming.

Keighley: This year?

Reggie: By the end of September.

Keighley: Alright, we'll wait and see. Is it going to be a good surprise?

Reggie: I think you'll like this surprise.

As I read that in context, Keighley was talking about channels.  It will not be the "check mii out" channel, because then his statements make no sense, having already spoiled the surprise.  He knew Metroid was going to be out in August, so I doubt it was the Metroid channel.  Wiiware is something already on the shop channel.  So I'm thinking there's going to be some new channel.  I also don't see anything that suggests it is for the hardcore.

My guess?

No clue.  It's going to be something we haven't thought of.  Maybe they've got their own second life type thing (using Miis of course), and are being secretive about it because PS3 has already bragged about theirs.  "Mii Life" or something like that.