With 32gb flash memory being so expensive, what is stopping apple from releasing...a 20gb iPod touch. Or a 25.45gb. Or a 19gb. Why are we stuck that the next 'hurdle' to jump has to be 32? Is that 'just how the chips come'? Does that mean after the 32 we will have a giant hurdle to get to 64? Why not a 48? Or a 40? Just confused. I assume it isn't 'one chip' and they use a combination of symmetrical chips, why not use one of the higher capacity ones and one of the lower capacity ones to keep it cheaper, or whatever.