Matt,
I think that if someone has really found a new energy source, that would be a huge advancement for physics, engineering and economics. And I'd really like to find out more about just what is going on in these devices.
As a physicist, I am quite certain that there is a lot more to the universe than we understand at present. Indeed, the "normal" matter and "normal" energy we are familiar with are now known to comprise some 4% of the total universe. The rest, we don't know, and I have many friends who are working to improve our understanding of dark energy, dark matter, and whatever else makes up the remaining 96%.
Where I take issue with these so-called "free energy" devices is that people build them, claim that they work, claim that the reason they work is because of some mystical new energy, and then become openly hostile when anyone asks how they work, what this new energy is, where it comes from, etc. If it is a real, reproducible effect, it should be possible, through careful measurements with sufficiently accurate equipment, to determine how much energy is being produced, in what form. I have not been able to find any such information for any "free energy" device that is not self-contradictory.
I have even read claims that the "Joe cell" device draws on the telepathic energy of people near it, and will shut down if anyone with negative or skeptical emotions is nearby.
Our current scientific paradigm allows for new ideas, new explorations, and things that don't fit in with the current theory. I know a few folks who, a few years ago, blew a giant hole in the Standard Model and forced a major rewrite of a large part of subatomic particle physics. But to call for a change in the scientific paradigm requires accurate data and a feasible explanation for what is happening.
If anyone has an actual theory for how a "Joe cell" works, I will read it. But as a scientist, I expect to see strong evidence to substantiate strong claims.
So, if you can offer any information on what is really happening, I would love to see it. Who knows- you may be on to something revolutionary. But I'm not interested in unsubstantiated claims, and I doubt many others here are either.