I never even really have seen the uneven illumination of 15" PB Rev A's discussed on here, but it seems to be a HUGE topic on the Apple.com discussion boards.
Has anyone encountered any problems yet? How is the illumination?
The screen on my new 1.5 is perfect. Although I've only been using this new powerbook for a day now, there are no dead pixels, white spots, or uneven illumination. Hope that helps!