Even worse - on my MBP there is no pound sign on the keyboard. Try coding without a pound sign! (EDIT: I'm referring to the hash key, i.e. #)
(I know it's alt 3, but WHY didn't they mark it on the keyboard? Newcomers have to google this! There is a sign on the '2' key that indicates euro (alt 2 is euro sign on my keyboard), so they could have done it easily on the 3 key.