An excellent point. Of course, one could argue that the reason the Airnergy isn't on the market is because the CIA have bought exclusive rights to it and are using it in their black helicopters... Another interesting thing is the number of free Valkee devices they're giving out. It's a fairly common strategy in marketing - and doesn't cost them much - but it strikes me as odd that they'll exchange a positive testimonial for a free device - http://www.thevalkeewars.com/ Thanks for the comment.