I was too busy to post impressions, yesterday.
It was an excellent conference for Sony. Best of the big 3, for me, in terms of games I'm interested in. The strength of it's content really kept me interested, throughout. I won't expound upon them, here.
Presentation-wise, it was second to Microsoft, and ahead of Nintendo. Kevin James ... I mean, Jack Tretton was easily the best speaker of the big 3 conferences. However, Sony could take a queue from Microsoft on marketing and showmanship, even with Sony's sizable disadvantage in war chest funds. Cut out the montages and sales talk. That time could've been used to actually show some of the games in those montages. If you really have to do a montage, make it fullscreen with titles.
Regarding their motion wand, I'll repeat what I said about Natal, in the MS conference thread. Promising tech, but I won't be excited until I see games for it, that I want. I bought a PSEye for Eye of Judgment, now give me a reason to get this. However, I understand that Sony may have been forced to show it, after MS' conference. They didn't even have a Wii commerical rip-off, with a fake-ass dad changing a tire with an imaginary air wrench(not trolling Natal, but I wanted to kick that guy in the face). Instead, Sony had its actual engineers demoing the tech on software straight from their test boxes. It seemed like an overnight presentation job, especially considering that their other live demos, i.e., AC2, ModNation, and GOWIII, were cut short for time. That's probably why that speaker looked like he was about to faint. He was probably up, all night, working on that presentation. I thought it turned out well, for what it was, though.
Sony definitely has core gamers covered with both the PS3 and PSP, and it's clear that that is their main focus, even being touched upon by Jack. The one thing, I feel they should have shown more of, though, is EyePet. No doubt, that would've ensured some casual sales.