A stirling engine for the backyard

I mentioned the Infinia Corporation a year ago, and with all this talk of solar power, I thought it would checking if this alternative idea (of small scale solar thermal using stirling engines) is still around.

It is, and it seems as if they have recent significant funding and (presumably) may be selling the product soon. Their main product of interest should look something like this:

It is, apparently, a 3kW stirling engine that provides electicity, and the website claims that it has a 24 % energy conversion efficiency, low maintenance, and will be(I think they say somewhere) cheaper than solar cells.

I want one for my backyard, simply because they look cool and you can (presumably) also roast a chicken in the focal point of that dish. (Any passing crow that wants a rest on that engine part might be in for a shock, too.)

Now, if only there were economical and small electricity storage systems big enough to get your average house through the night. This calls for another round of Googling!