After Apple launched the iPad in 2010, it didn't take critics long to start asking if this new breed of one-panel touch tablets would kill the PC market as people opted for slates over clamshells. Now, more than three years, four iPads, and a gazillion Android tablets later, the answer to that question is finally taking shape.Related StoriesAndroid Tablets Challenge iPad on the Factory FloorThree to launch 4G LTE mobile network in Q4 after rivals
