Good photo. Direct. Head-on. No 1/3 or angle like some might go for. Head down, eyes up. The hand works. It's akin to a power gesture as well as a reference to his intelligence. It's more natural than a single finger tapping the chin as some might try if they were faking the process of deep thought. It looks like the photographer knew what to say to get Jobs to do what he wanted, and then captured that.
Definitely shows not just the subject, but a bit of the photographer in there as well.
Definitely star material. Better than I take, for sure!