For the first time, Sony Computer Entertainment Japan created a Tokyo Game Show media site for public consumption. Visit the site to see video clips and images of Sony's upcoming PS2 and PSP line-ups.
The link is: http://www.playstation.jp/scej/title/tgs2005/
Take note, there's a lot of Japanese text on the site. Don't worry, you can get to most of what you're looking for by clicking on the "PlayStation 2 Title Lineup" and "PSP Title Lineup" links at the bottom of the page.