After getting some 3 hour sleep - god why did I stayed up! - I realized something!
I was all in for this game (the occasional Vita version, of course), as Sony has a nice roster of characters to pull something like that.
But reading the previews, I think the way the matches are going to be decided are a big design flaw! No kills, but time and points! One of the major positive aspects of SSB is the satisfaction of the kill - your opponent flying through the air or exploding in a fountain of light after he tries a triple jump but still can't reach the ledge!
Going for points... not a good decision! Not at all. This system is preliminary and might grow on me, but just thinking about it sounds wrong.