First, the skeptics need to think past our tiny and shiny seas or our borders. Globally, the real market is not the US and other developed countries. The market (profitable) is going to be the developing world. The world who does not have a power-grid nor can they afford a power-grid. (I do not think their is enough copper in the world for a world-wide power-grid.)
Second, the Bloom Box technology needs to be viewed as the next mobile/cell phone-like technology. The number of mobile phone connections worldwide will increase from 4 billion to 6 billion by 2013. The growth or continuing market is not the US but developing markets outside the developed world.
The Mobile Marketer pinpoints the growth: The growth in the number of connections is attributed to a couple of reasons. First, the integration of mobile into previously unconnected devices and then, subscriber enrollments in emerging and developing markets.
So, market for Bloom Box will be equally outside the US. In developing nations for mobile phones, there is no choice between land line versus mobile phone. The same will exist for the Bloom Box, there is no competition with any established power companies. It just a matter of pricing and or cost.