Also, the article states they are using nanotechnology to build these cells. Nanotechnologoy remains a bit of an enigma. On the one hand, it is great to see the things that can be made. However, what happens to all those tiny machines at the end of there useful life? There are some studies that show that they are a carcinogen because of the materials they are made of. Most manufacturers simply dump them into the waste stream, so now we will have trillions of microscopic machines made from cancer causing materials contaminating our environment.

Good deal.