Ugh that presser was terrible. It was just all "this is shit you know already, let's talk about how awesome we are". Literally the only surprise game was Twisted Metal, the rest were games we already knew about, though it was nice to see some new trailers for Infamous 2 and so on. Portal 2 was cool to see, but that's obviously multiplatform so it's hard to get too excited.
The PSP showing was WEAK. Only a short teaser trailer for GOW: Ghost of Sparta, and a new ad campaign. And with the 3DS coming out, this is when PSP really needed to step up and it didn't.
Honestly, it felt like filler. Sony honestly didn't have that much to show, so they made it drag on with montages and speeches. But hey, it was better than Microsoft's by a LONG shot.