The real explanation is that some people think that iPad 2 is the next version of 'the new iPad'. I'm kidding of course. iPad 4 is now called 'iPad with Retina

The real explanation is that some people think that iPad 2 is the next version of 'the new iPad'. I'm kidding of course. iPad 4 is now called 'iPad with Retina display' which makes me believe that Apple might even continue upgrading iPad 2 with iPad name, similar to the other product lines with/without Retina.