Apple iPad 2 faces iPhone 4, 3GS in an epic display shootout

The iPad 2 has already gone through dozens of reviews after its launch, but none of them is as scientific as this one. The guys over at DisplayMate have compares the tablet's 1024 x 768 pixels screen to the iPhone 4 Retina display and the iPhone 3GS modest HVGA screen. Here's some of the...