Hi, guys
Here are some pictures of new Sony PRS650 (new pearl screen) and the "old" PB302 in comparison. It is quite comparable to despite of PB302 touchscreen layer over e-ink screen..
Sorry for poor quality - I filmed with my HTC.
The new screens of PB603 (602) and PB903 (902) are without a touchscreen layer over it and are hardly different of Sony's new model with "pearl" screen.. I couldn't see any difference in IFA.
http://www.youtube.com/watch?v=LPGXDH8yZWg