Entroper on 31 May 2007
Online Smash Bros:
http://www.nintendoworldreport.com/previewArt.cfm?artid=11798
"Brawl will be compatible with the Nintendo Wi-Fi Connection, but the number of supported players is still a mystery. Two player games are definite, but the creators have expressed concerns with making a four player mode work online given the type of game Smash Brothers is."
That's from July 2006, so I'll try to find something more recent.
