i played it already it is REALLY awesome, my friend pre-ordered it, but by mail so he got it march 3rd. its really awesome!
Breaking News: IGN has just agreed on a final rating for SSBB : 9.5/10!
Things I think would make it 10/10:
Voice chat during online play.
Online Brawl Rankings.
Slightly Better Graphics.
Many Characters have the same moves, change that.