EPIC! She was very well informed about how it works, provided a very good positive image. I'm pretty sure the millions of people who watch letterman and are smokers will be a bit mroe intrigued by this!
Perhaps one of the biggest obstacles the FDA will have to climb over if they want to regulate these things is a solid positive public opinion in the media! So far it's been a lot of negativity regarding e-cigs, but I'm sure we're going to start seeing more coverage in the news of actors, actresses and celebrities using these things.
My 2011 prediction is that a famous rap/R&B/hip hop artist is going to use the
device in a music video which will "light a blaze" in those demographics.
vaping will suddenly be a "cool" thing to do.