Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
I remember people were complaining about the black levels and something about the jay z black album cover was a way to tell. I think it was an iPhone 3G problem. I def forget the website link. Ugh.
 
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_3_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8G4 Safari/6533.18.5)

Searching "How to check for dead pixels on iPad" yields many search results for checking at different color levels for dead pixels.
 
I was playing with my friend's iPad today and noticed the screen felt hollow when typing. I really wish they would glue the glass onto the LCD like on the iPhone. It probably would be structurally worse because of that though.
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.