I'm confident GT5 will be out this year in time for GT2's 10th anniversary and GT4's fifth anniversary in November / December.

There's plenty Sony could do. However there are a number of single things Sony could reveal that would truly set them above Microsoft.

Gears of War 3 or Mass Effect 2 day and date multiplatform
Kingdom Hearts III exlcusive
Final Fantasy VII Remake
Gran Turismo 5 2009 Release
PS3 price drop to $299.99
PS3slim
Sixense Motion Controller
Official Trailer for Project Trico

Pretty much any of those is bigger than any single thing Microsoft had at their conference.

Ahh I blame lack of sleep, it was after 4:00 am when I was reading it ^^

What Sony can do? Like Nintendo, pushing more games and franchises it has control on. Being nice only with 3rd party that even going multiplat remains nice enough with Sony. And a price cut and/or PS3 Slim. And remember that while MS really would like 3rd party to help it crushing Sony, 3rd party really want only XB360 user base, not being tools for MS' world domination plans, as they know what happens to MS' pawns after it secures what it wanted.

Not announce a new motion control device for the PS3.

^^
LOL!

That's for Left 4 Dead...

umm something with a motion sensor and steal a xbox exclusive and new psn features

LOL

Ok, wait. Win E3? As a gamer, I don't care when they announce a game (even better, when they announce tons of games), I simply want them, so give me release dates, videos, demos, screens etc for all these huge games already announced for the PS3 and PSP. That's all I care. If Sony announce more games, it will be very impressive IMO. There's tons already!

Oh, a PS3 Slim/Price Cut would be wonderful for me, since it's too expensive in my case and I need one before God of War III!

Sony OR Nintendo don't really have to do much to out perform MS's conference. MS's was "decent" at best. There were no real surprises there and none of there announced stuff is in the slightest appealing to me(besides MGSR but thats MP). Crackdown 2, big woop, saw it coming, heard rumors going on about it months ago. L4D 2 being 360 exclusive really is not that big a shocker seeing as the first as stayed exclusive. Mass Effect 2 trailer was a little old, saw it on gametrailers days before. Don't even get me started on there motion sensing technology. As if the world really needs more casual games, UHG! The motion sensing route will def get them the casual gamer's attention though. All those who originally flocked to the Wii now might be looking at the 360 which is now cheaper and same experience(if not a better one). Yet this does nothing for me, a 20 year old who is fit like a track star but lazy as the day is long(lol). I can care less for moving while I game. I rather sit in my own body soil for days at a time not moving anything but my fingers.

Sony has put out info on many of there biggest titles already and have been doing nothing but boast about what they have in store for E3. For sony to have the gaul to release Project Trico teaser, Uncharted 2 gameplay, Heavy Rain ingame footage, announced they are getting the Fallout 3 DLC too, getting Ninja Gaiden Sigma 2, as well as many other EXCLUSIVE games from a few publishers(more JRPGs FTW) they DEFINITELY have something bigger than MS's conference.

I am expecting....
-More info on all the above games, maybe some release dates.
-God of War III stuff
-Twisted Metal PS3 game announced, shown, and dated
-Metal Gear game that is EXCLUSIVE to PS3(MGS5 or a spin off like the 360 one)
-Reveal Project Trico formally
-MAG will get some screen time.
-PSN XMB updates and additions:maybe in game video/voice chat.
-Backward Compatibility coming back to the systems
-New Bundles with games and a movie or something like that.

Not to forget the PSP....
-PSP Go(stupid idea if it is true that no UMD drive)
-Tekken, LBP, Assassin's Creed, MGS Portable 2, Gran Turismo, Rock Band, and a butt ton more of PSP games

and the motherload, a price cut(about a 50% chance of happening)