While not the fuel cell battery replacement for gadgets we keep hearing about Horizon is promising some very cool technology nonetheless: portable, enviromentally friendly power on demand - just add water! Their portable generator technology is aimed at disaster relief, outdoor, and developing countries. The totally recyclable cartridges have an infinate shelf life until activated, and can be activated by adding plain old water - no filtration neccesary. Check out the video for more details on this cool new tech.