I've only so far used mine in public in my local pubs. The landlord of one was interested in selling them (don't think he got around to it though), and a few weeks later there was another person in there with a penstyle. I've also had people come up to me and ask what are they and where can they can get them, so I point them in the right direction
That said, I've mentioned it to a few people, strangers, who've looked at me a bit oddly to say the least and then didn't seem to dare ask more about what I was talking about, LOL!
When I first came to this forum (Dec or Jan, before actually joining), it seemed to be a pretty much equal mix of Brits and Americans. Now seems to be far more Americans than Brits. So maybe Logan's right in that it's still not yet known enough in the UK? We certainly have far fewer suppliers than the US does now. I guess the UK suppliers would have a better idea of how many more people there might be who know about it nowadays.
I also seem to remember that at one point someone said some branches of Boots were selling some kind of e-cig.
At the same time, I don't know what the advertising laws would or wouldn't allow here.
I bought my first e-cig in Oct, having read about it in the papers, a Gamucci Micro. It stopped working within 2 days and was a complete waste of time other than to give me an inkling that the idea of an e-cig might work. At that time, I knew nothing about it, and nearly gave up till I found this forum. So, without all the valuable info on this forum, would people buy one, wonder why a cart does not equal a pack of fags, wonder why an atty stops working after X days and so on, and then give up on it as I nearly did? After all, let's face it, the manuals that come with a starter kit are mostly pretty rudimentary and useless!