I found this article from 25 June 2004, and I was wondering what your views were on it: http://news.bbc.co.uk/1/hi/technology/3837139.stm What effect do you think this could have (if any)? Is there any benefits from using this technology? The article says the technology went on sale at the stat of this year. Has anyone seen this used and if so, how well did it work?