Extreme Tech: Walking cautiously through the automatic revolving door of a swanky, black, shiny, minimalist hotel in London, the first thing I notice about Mike Bell, Intel’s chief of mobile, is that he’s large. Sitting on a chair in the lobby, Bell’s head is framed by his knees. Standing up to shake my hand, he towers over me — and I’m 6’5″. (ARM, Intel, PC hardware)