I think the 'feeling' clue they're giving us is some kind of amazing function in the controller that'll create the feeling of whatever the onscreen character is holding. For example, if it's a racing game, the controller's backside will suddenly 'feel' like a steering wheel. If it's a Zelda game, your controller will suddenly feel like a sword or other weapon.
Just a guess.
I'm so happy to hear Super Smash Bros. will be a launch title though!
