Well, today at the Electronic Entertainment Exposition, Shigeru Miyamoto showed off a video debuting the new Smash Bros. game for the Wii.
Scheduled for release in 2007, confirmed new characters are: Wario, Pit (from Kid Icarus), and Meta Knight (from the Kirby games.)
As their video went on, it cut to a conversation between Solid Snake and Otacon via his wrist watch. As it goes, Otacon says that Snake has been invited to Super Smash Bros., and then asks where Snake is. Snake says he is on recon, and the camera zooms to show Snake hiding in a box while some Smash Bros. characters are fighting.
It is said that Konami had asked Nintendo to let them put Snake in. They said it would open doors for other third parties to put their characters in the game. Sonic anyone?
Personally, I find Smash Bros fun, from a unbiased position, and really, the entertainment value of the series has just gone through the roof.
Edit- I have yet to find the video, so if anyone comes across it, post up. Oh, and duh…the game is gonna use the normal Gamecube controller. Big Green Button ftw.