These puppies have incredible potential — both for efficiently powering engines, like car / truck / train / boat / plane motors, etc., which tend to rely on relatively inefficient and high-in-pollutants power sources, AND for storing micro-power from personal-scale solar, wind, motion-driven-backpacks (something for another post), or other power collection technology — check it out:
http://news.wired.com/dynamic/stories/N/NO_MORE_BATTERIES
(the AP via Wired News).

For you electronics geeks, the key is that these are “capacitors” not “batteries,” using a microsandwich architecture increasingly popular in other engineering functions (like electronic memory).

For everybody: These suckers charge fast, hold a lot of charge, and provide lots of juice when you need it.

Unfortunately, it’s not quite perfected yet…. I’ll give it one thumb up for SIs (”Speculative Investors”), though.