Screen multiplicity in a Swiss train

Sitting on a Swiss train the other day, I became fascinated by this air pilot playing with his laptop PC and his tablet.

But it became even more fascinating when the guy fired up his iPhone:

Why do I blog this? Fascination towards compulsive usage of technologies. This is definitely an extreme user with peculiar practices, but it was fascinating to see how he combinbed certain sorts of interactions/app usage to certain parameters (screen size, presence of a keyboard, etc.). It was also curious to see how the mobile context (a train with a limited personal space) was not so problematic to accomodate the use of three displays at the same time.