Yesterday, Apple revealed a much hyped tablet PC, which apparently runs all current iPhone apps right out of the box. With a pixel doubler, if you want it, even.
Unimpressive as that may sound, this holds the potential to alleviate pixel shaders to great effect. Think 3D iPad games which run in hi-res, full detail on the pad, but scale down gracefully to the iPhone by simply turning down the amount of 3D detail. You know, for when you want to take Christmas Whack-A-Mole with you to the bus. I can see it happening.