I don't smoke but this actually seems like a very good idea. Apparently they are allowed in bars, airplanes and other places that ban smoking.
“The Electronic Cigarette gives you nicotine, but it doesn't give you any of the other 4,000 chemicals from a cigarette that can cause cancer, among other problems..” - Dr. Travis Stork from “The Doctors”
The electronic cigarette also is not encompassed by most smoking bans and regulations. With the lack of second-hand smoke, smokers are excited to find that many businesses, bars, and even air planes allow them to smoke e-cigarettes indoors. Many electronic cigarette users have also received special permission from their employers to smoke e-cigarettes in the work place.