Well, I only saw the Nintendo Conference and Twisted Metal/LBP2/Infamous 2 E3 clips, since I know those were the highlights of the Sony Conference.
I don't really care for the 360, so I didn't watch the Microsoft Conference. Kinnect seemed like a terrible idea at first, and it still is. The games coming out for it (Kinnectimals, seriously ?) are lame, and I am not too crazy about the new name.
Anyways, back to Nintendo's Conference. It blew my mind. I'm really excited for the Nintendo 3DS, now that it has proved it's more than just a DSi with 3D capabilities. The games for it are looking great (points to Kid Icarus: Uprising and unconfirmed ,but good as official Orcarina of Time 3D).
As for the new Wii games being released, i'm sorry to say that most are coming out 2011. Titles that are coming out the following year for Wii include The Legend of Zelda: Skyward Sword, Mario Sports Mix, and supposedly Pikmin 3 will be revealed at next year's E3.
As for the titles you will be able to enjoy this Summer and the Holidays, Nintendo has you covered:
- Kirby's Epic Yarn (Liking the art style) Up to 2 players
- Donkey Kong Country: Returns (SWEET) Up to 2 players
- Golden Eye: Reimagined (Thank you, Activision) up to 4 players offline as well as online play
- Metroid: Other M (Coming soon: August 2010)
- Epic Mickey (Might be good)
- PokePark Wii: Pikachu's Big Adventure (How adorable)
Anyways, those are all the titles I can think of right now and i'm sure theres more. Also, The Legend of Zelda: Skyward Sword will need Wii MotionPlus, and don't worry, the music is orchestrated. :P