As I told my lovely wife when she asked, it depends on your definition of 'reading' is and what the context of the question is. If it's being used as a synonym for 'consuming' then yes, it counts. If it's being used to mean 'absorbing information via retinal input of visual shapes,' no, obviously.

I can't multi-task while doing either one, unless one of the tasks is automatic/unconscious, like driving. There's no way I could play DotA or soccer or something while listening to a podcast or audiobook, unless I wanted to miss the book.