While we're talking about saving energy, cutting costs, improving production processes, occasionally a new idea comes up that just makes sense. Walking takes energy, but it also creates kinetic energy; how to harness all that energy going to waste? NTT - the Japanese telecom giant - is developing shoes that will generate electricity while you walk. A small generator attached to shoes with water-filled soles, can generate up to 1.2 watts of electricity. So how does it work? With each step, the pressure of walking pushes the water in the soles through a small turbine to create power. Although 1.2 watts isn't much, it is enough to power your iPod indefinitely if you don't stop walking! (There is no power storage on board.) Sort of a perpetual motion machine... NTT spokesman Hideomi Tenma said, "The company is trying to improve the power-generating capacity to 3 watts, which is the amount of electricity to power a mobile phone." What a great idea - though I think walking and talking on the phone can be just about as dangerous as driving on the phone... You coud see actual products with the power geneator as early as 2010.