[masklinn]

> Today the screen is 132 ppi - taking that up to 326 ppi would make it somewhere in the vicinity of 2528x1896.

They wouldn't actually do that. They'd "just" double the resolution so the applications can easily be scaled up losslessly, as with the iPhone 4. So you'd get a 2048x1536 screen at 264dpi (one thing to consider is that you'd probably hold your iPad further from your eyes than your iPhone, so the you can have slightly bigger pixels).

Modern hardware absolutely isn't able to provide such pixel densities on such a small surface at an affordable price, and even less able to drive those things using mobile CPUs and GPUs (we're talking about the resolution of your average 30" screen, which still kicks modern GPUs in the teeth)