I read that recently, it is very interesting technology. The one thing it does not do is increase the energy density, but the long life would be very welcome. Wide adoption of such a technology would dramatically reduce the amount of batteries being disposed of, as well as increasing the useful life of devices which don't have user-replaceable batteries.
Interestingly (or not, depending on your perspective) I've visited the Idealab campus in Pasadena. I was working on a material/process for one of their start-ups in the Solar Power industry.
I posted it because our need for batteries as photgraphers is great- Not only to directly power our cameras but also to power our flashes, and that many cycles is immense. To me, it doesn't even matter if we don't get more pops per charge if the batter will (reasonably) outlast our body. That's HUGE, and that's just how it impacts our little hobby segment. As the article stated, the main focus is on renewable energy, which, again, is HUGE.
I still am waiting for a invention to use Sun rays... even on a cloudy day. I mean, we are bombarded with tons of invisible rays coming from sun daily, some of them can't be stopped by clouds... one day, we will find a way to transform that energy to usable one :)