I was looking for the name of this company and for the life of me couldn’t remember it, took a while to google it:
http://query.nytimes.com/gst/fullpage.html?res=9A06E0DA163DF931A35751C1A961958260
Take a look at this little baby, with its size and weight we could easily mass produce it if we wanted to, even with the tolerances in the microns.
The Capstone turbine generator concept has been around for over ten years. Look at the date of the article you pointed to.
It never seems to have gone anywhere besides fishing for investors. I suspect a standard diesel genset is not only cheaper, but more efficient in real life.
http://phx.corporate-ir.net/phoenix.zhtml?c=120708&p=irol-newsArticle&ID=1165503&highlight=