You know i've seen though man.
In the last 2 weeks, like 10 people at my work have e-cigs already, and they all smoke while working indoors, that's amazing man, can smoke while working inside a building and theres no smell or anything.
I have gave up smoking completely, been off cigs for, what, 2 months or more now, and I feel great, no desire to smoke whatsoever, well, if I drink I have to smoke, I can't drink and not smoke, so I quit drinking also, haven't had a drink for almost 2 months now too, I tried to have a vodka last weekend but I still wanted a cig, so I only had 2 vodkas and stopped lol.
I wish e-cig was around for the last 5 years while I smoked, i'd be luvin it being able to do some work, take a quick puff, get back to work, without having to walk upstairs get my cigs out my lockers, put my jumper/coat on, go all the way back downstairs and out the front, round the side to the designated smoking-area, and all the way back in, that saves 5 minutes of your break already lol...
You can smoke on the bus, you can smoke even on planes supposedly, dunno if that's true though, you can definately use this thing more or less anywhere you want, at anytime you want, that's one of the cons of smoking real cigs, at work, you can only smoke on your break, in designated areas, with e-cig, anytime you want, anywhere you want, it can't get better than that imo...