But some hope to find an audience for less utilitarian subjects among adults who feel that they missed some education when young.

ECONOMIST: Lessons of a virtual timetable

Disappointingly, the Amphones feel as passable as the AmPlug -- make no mistake, the cans are about as utilitarian as they come.

ENGADGET: Vox jams guitar amps into Audio-Technica headphones, dubs them Amphones (ears-on)