Maybe I'm missing something, but I think you were just asking if the technology worked...not if you could get free power from any phone outlet.
Exactly. It's really no different than when I ask "Where do you keep the key to the liquor cabinet?" It just means that I'm intensely curious about such things as the places people find to keep their keys. <img src="/images/graemlins/wink.gif" alt="" />
Sheesh, people are just sooo defensive about some things...