Just picked up a 4 and put it in the Joy Smartsuit 3 case I kept the iPad 3 in. The 4 barely fits and it doesn't close the same as with the 3 in it. Everything I read says the 3 and 4 were identical in size and weight, but either I got a fat one, or someone needs new calipers. Anyone else notice a difference in thickness when they put on a case? Also, if anyone remembers when the 3 came out, I was one of those who had a tough time finding a nice screen. It took me 5 ipads to get one that didn't have greenish/pink blotches across the screen. I'm rather surprised and happy to report the very first iPad 4 I got seems spot on, screen wise.