Photo diary: Palm pilot

A tweet from @toddster last night included the above photo and alluded to the following:

Still on BART. This dude stared at his right hand for a good six minutes straight.

All right, folks, let’s hear it: What was the guy looking at/pondering/worrying over? And before you go too far, there’s no hair on that palm (but if you want to Photoshop some in, by all means. And then send that to us, eh?).