Wii Online Play
I just purchased a Wii this morning, and bought Madden '07. I'm a huge Madden fanatic, and was just curious as to when Nintendo is going to release the option for online play. Thus far, I've heard the second quarter of '07, but haven't gotten confirmation.
Online play is coming eventually. The DS can already do online multiplayer so you can be assured the Wii will offer the same.
Elebits, which is out this month lets you send screenshots and custom built levels to other people in your address book. That's not exactly online multiplayer, but it's a step in the right direction.