The answer is yes, that is a Book (an eBook) in my Pocket (PC), but there is happiness involved anyway if you take pleasure in the written word. Every day the question comes up - actual wording varies - from fellow commuters or travelers, people on street or in waiting rooms, when they see me engrossed in my Pocket PC. Unexpectedly enough most don’t wonder about the gadget itself, or even try to guess if I am playing a video game. And the answer always surprises them: I am reading.

Source:Is That a Book in Your Pocket or Are You Just Happy to See Me?