Well, this is a major disappointment. Chris Kohler at Game|Life has word that the upcoming Super Smash Bros. Brawl for the Nintendo Wii will not be playable at E3 next week. Apparently the company would rather focus on... how did you put it, Chris?
Nintendo's stance is that they are going to have an E3 with a very narrow focus on a group of key software titles.
My cynical side takes this to mean the focus will be on Brain Age-type games and other such casual experiences with which Nintendo has recently struck gold. I know the company really wants to push these types of games, but if I fly across the country only to be shown yet another batch of quirky mini-games, I think I may well lose my mind.