Here's a little coverage ..
5"OLED with 960 x 544 resolution with full touch.
Sony has quadrupled the resolution of the current PSP.
ARM Cortex A9 core Quad Core CPU + SGX543MP4 GPU
Next-Gen Best in Class Processing - Graphics equal to original XBOX.
New Flash based Game Media.
This new game media will allow games + addon content + save games to all reside on the Card itself.
Dual Analogs controller
Newly designed analogs sticks are smaller but have a greater resemblance to original dual sticks
3G + Wifi(b/g/n) + GPS + Bluetooth 2.1 EDR
Full connectivity to maximize the communication.
Dual Rear Touch Pads
Capacitive Back touch pad to allow additional gaming interface.
Front and Read CAMERAS.
Dual cams to allow greater multimedia experience and communication and quite possible gaming interface.
Augmented Reality.
Augmented Reality becomes a very real prospect in gaming and other coming NGP applications.
Gaming-Social Networking - LiveArea
Share your gaming experience with friends using LiveArea feature to be available on all NGP titles.
Location based Entertainment. - Near
Interact with friends nearby in the real world and share using "Near" application
Motion based gaming - SIXAXIS sensor - 3 axis Gyro + 3 axis accelerometer + Compass
Get full game play immersion with motion-tilt gaming.
Console Size: 182.0 x 18.6 x 83.5mm
Size almost equivalent to the PSP 3000
mini HDMI Output.
Definetly expected but not announced at such.
Also there has been no mention of the internal storage capacity.
This will most likely launched in 16\32\64 Gig variants.
PSP2 16GB should be priced around 299$
then higher version can go for upto 349$