Someone explain to me Why/When/IF the Wii will have online multiplayer

[teh_mewse]

I got metroid prime 3 the other day and, FINALLY, we have a system that can rival the controls of a PC first person shooter. For those of you that haven't played it, the controls aren't as perfect as a keyboard and mouse, but its pretty damn close and i actually prefer the GAMEPLAY of having to actually point at your targets. The wii doesn't have insane graphic capabilities but a game like counter-strike source or w/e on the wii would be sick sick sick sick sick. So sick to the point where, if nintendo's next console has ps3/360 tpye graphics or better, the PC gaming industry could be doomed. Why is there no equivalent to xbox live for the wii?