John Gruber of Daring Fireball says that Apple's pushback of the iPad release one week isn't because of hardware, but really because of software:
My sources suggest that Misek is wrong. It was the software, not the hardware, that took a week or two longer to finish than they’d hoped. Nothing extraordinary or unusual, just the usual hard-to-predict timing of turning software that’s almost ready to ship into software that’s ready to ship. In the grand history of major OS release date slips, one week is pretty tame.
