Good luck keeping people from using them anywhere. They don't smell, so non-smokers aren't going to complain (I've been using e-cigs at work for two years and never received any complaints, in fact one person who sits five feet from me wasn't aware that I did it). The only people who've ever asked me to stop using them in restaurants and bars are staff (and only two instances in two years of regularly going out with e-cigs), and they're only doing it because they're afraid of getting into trouble with whatever regulators might crack down on them.
Electronic cigarettes should be left the hell alone. I've never seen a more successful smoking cessation tool. Trying to heavy-handedly 'regulate' them so they aren't as easy or affordable to use will only ensure that people keep smoking regular cigarettes. Of course, the more paranoid side of my brain reminds me that a lot of tax revenue comes from old fashioned cigarette sales, and perhaps governments will want to protect those revenues.
Electronic cigarettes should be left the hell alone. I've never seen a more successful smoking cessation tool. Trying to heavy-handedly 'regulate' them so they aren't as easy or affordable to use will only ensure that people keep smoking regular cigarettes. Of course, the more paranoid side of my brain reminds me that a lot of tax revenue comes from old fashioned cigarette sales, and perhaps governments will want to protect those revenues.