2006 - Wii's real debut, pretty much their most successful E3 ever. Brawl, Prime 3, and Galaxy were revealed as future titles, there were stampedes for the wii line
2007 - Brawl, Metroid Prime 3, Mario Kart Wii, Galaxy, Mario Strikers Charged, Phantom Hourglass, Wii Fit
2008 - Oh GOD someone kill cammie, ravi drums nightmare fuel and wii music
2009 - Wii Sports Resort, Galaxy 2, NSMBWii, Other M, Mario & Luigi, Golden Sun DS, Spirit Tracks
2010 - Amazing 3DS reveal, 007, DKCR, Skyward Sword, Kirby Epic Yarn, Kid Icarus
2011 - snore fest and botched wii u reveal
2012 - ????????
I think they're going to deliver on the hype.