Among the gadget owning people I hang out with, everyone tends to keep their iPhones to themselves, or hand them to someone else for a specific reason (look at this funny picture, let me show you an app game I got).

I agree that it's weird to hand someone your personal computer and then let them play with it. I wish the iPhone had a 'guest' mode.

I sometimes let a friend's young child play with my phone, but he's only interested in the games.