I see all these posts about how a Retina iPad mini can't exist next year because they don't want to cannibalize the flagship 9.7" iPad and also because it would raise the mini's price to regular iPad territory. Suppose they come out with a Retina mini which has a higher ppi than the regular iPad, does it matter? They cater to different markets. One for those that prefer bigger screens, and one for those that want a more portable device with a smaller screen. If they are priced the same, that is no different than when an iPod classic was priced at the same price as an iPad nano years ago. One had 160GB of music in a large form factor, the other had 16GB of music in a portable form factor. Different markets. Even if they both cost the same, you are paying for a bigger screen with one and portability with the other.