[ddouglass]

Musicman51, if you look at the design of the cooling board, it is actually blowing air along the bottom (outside) of the case to disipate heat from there and not actually blowing air directly into the laptop.
I can see if a computer is in a small room with someone directly around the computer how smoke would eventually build up enough to cause a problem, but in a much larger room such as a bar or restuarant I don't see this as a problem for it.
Texas is another of those states who have not adopted a statewide smoking ban, though most of the major cities have. So we deal with it too. However, as a smoker and one who has smoked around his computers since home computers became available, I have never seen any kind of tar build up on any of them except on the outside. Unless you had your cigarette directly in front of the air intake it would be very hard for the tar to travel inside of the computer.