The iPad 2 is a modest update — faster processor, more RAM, FaceTime cameras jammed in a thinner body. Even with a much more powerful tablet, Samsung is already shaken. It's sending the recently announced 10.1-inch Galaxy Tab back in-house for re-tweaking and reevaluation.

There's something not quite right with the burgeoning tablet PC business. As it did with digital music players and touchscreen multimedia cellphones, Apple has created a viable gadget market where none before existed, fortifying droves of copycats and followers smelling sudden success, a "me too!" army pouring through a breach in a fortress wall it had no hand in toppling. But has it occurred to anyone that perhaps Apple's iPad didn't so much create a market for tablets as much as it created a market just for Apple iPads?