The problem to which most of you leaving comments about bleeding happening to all LCD's when turning brightness up to 100% is that this is happening in normal lighting and visibly seen at 0% brightness on the ipad 2 device.
If the bleed is visibly seen at 0% it is not acceptable solution to say ok Ill keep my brightness all the way down in order to correct the issue. Why doesnt Apple then just issue a software update that eliminates the brightness toggle from all ipads and set it automatically to 0%. Probably because that is not how the product is intended to operate.
I believe it's a hardware issue, not a software issue. A lot less backlight bleed on the iPad 1's because of the brackets holding the LCD rather than glue for the iPad 2's LCD. Glue = thinner but more prone to uniformity issues. It's a trade-off. I'm sure the Apple's or Supplier's engineers are working on this issue. I just put in an order in for an iPad 2 myself. I don't mind the delay if it is because they are improving the production process for the screens that I've been reading about. To me the iPad is a nice to have item, rather than a must have like my Macbook.