Major things so far (it's still going on) is:
Playstation 2 and Playstation 2 Combo Pack is now priced at $149
Ratchet and Clank: Up Your Arsenal will have at least 8 player online capability.
I'll keep you guys updated.
PSP is about to be shown I believe. It looks like a Lynx with the face buttons on the right side (look the same as a PS2 and set in the same place), a directional pad on the left and a widescreen LCD it looks like. At least 2 shoulder triggers ala the GBA. It's all black as well. 16x9 widescreen, but I missed the pixel numbers. On-board memory will be 32MB with 4MB of VRAM, built in stereo speakers, on-board ports for controllers, headphones, battery recharge, etc. Wireless ready (802.11b).
Battery life of about 10 hours with Lithium Ion battery. Media is 3 times as large as a CD.
3D gaming is its major thing...will allow movie watching and other things. It weighs 260 grams.