Currently Online 
If I can date Samus I'm in.
I think a blue ocean MMO would be much better. Some kind of Nintendo facebook maybe. Anything that's online and makes players meet and interact with other gamers, discussing their Wii experience and recommend games. Nintendo could use it to advertise games.
They could bundle it with a keyboard/cam/wiispeak/something.
AND, it could be compatible with the DSi!
I imagine people coming home from work/school/whatever turning on their Wii's and entering the Wii Portal (preliminary). Maybe they upload some photos from their DSi's. Then they talk with their friends.
"I got a new game today. It wasn't good at all, some mini-game collection I don't even remember the name of. It seems that this is all there is for the Wii. It was fun at first but now, I don't know..."
"Aw, that's to bad. Place it in the Hall of Shame, and remember to give it a ranking. But hey, I got this really cool game today. It's called Muramasa and it's really good! You should try it as well!" *Sends screenshot taken ingame through a new Photo Channel feature*
"Wow! I love the Wii Portal!"
