Ok, this threads purpose is to tally up what can be assumed to be present at E3. The three big hitters, as well as individual studios. When E3 is over we can come back to this thread and figure out who was right about what ^^.

BIG THREE Announcements

SONY

PSP2 revealed

PS3 price Drop($300, 400 models)

PSP price Drop($99)

LBP content creator/editor(such as custom costumes and accessories)

Uncharted 2 Trailer, demonstrating SP and MP modes. Demo

WKC info and release date(this year)

Demon's Soul Dated for this Year

Heavy Rain Trailer:Gameplay mechanics and Dated(this year)

Shin Megami Tensei game revealed as a PS3 exclusive

Quantum Theory Demo

Exclusive Rockstar Game Revealed(GTAV?)

Backwards Compatibility making a comback

more MAG details

In-Game Voice/Video Chat for XMB

MICROSOFT

GTA IV 2nd DLC announcement/details

Halo ODST Trailer

A previously thought PS3 exclusive going Multiplat(MGS4, or MGS5?)

Alan Wake demonstration

Splinter Cell Title dated for this year

New tweaks of XLive of some kind.

360 Motion Controller

NINTENDO

WII Sports: Resort dated

New Zelda info

New Mario info

Some kind of new attachment

Other Announcements

Konami

Hideo Kojima's new game revealed

Capcom

Marvel vs Capcom 2 REMIX for XBLA and PSN

DMC5 revealed

Square Enix

FFXIII info

New Game for PS3/XBOX360

Bungie

Reveals new game project(not HALO)

Predictions Notice:predictions have to be backed by some sort of evidence or reasonable conclusion. Post your own predictions on what E3 will hold.

Zelda Wii announced for Nov 09 release. :)

I think it'll be the big game Nintendo told Gamestop to make room for.

Heavy Rain, Alan Wake. Check

Oh please, please share these with us. I'm dying to see them.

I smell a fanboy.

Next MGS coming to the Wii just for the lulz

Is this thread is a response to the other one?

And it's a rail shooter.