No, it'd never work out.
Surfer girl said that there was a prototype of it, and it was in-progress, but Miyamoto or someone didn't like how it was turning out, so it was pwned.
I think the screens are too small for the game, and it'd be too much happening on screen. Also, the game lives and dies from multi-player, so it'd need to have online, and if they couldn't get it right with SSBB online, I wonder how they would get it to work online portably.







