That's such a hand-wave. The comparison to be made is the form factor, and each side brings things to the table. The fact that Apple has multitouch and others don't does not mean you can't compare them to products that are similar in other ways -- you just need to assign value to the touch interface. And, just as a touch interface has a measurable financial value on a tablet, so does having a real operating system that can run real applications. So does handwriting recognition. So does the ability to run Microsoft Office instead of iWork. Etc. etc. etc. You can't just shrug off a comparison because Apple took a tablet form factor and added one feature (or really, just promoted that feature from its phone lineup and tried to convince everyone it was an innovation.)