Try This on Your Shoes to Power Your BlackBerry

"Researchers at Princeton University have created a flexible material that harvests record amounts of energy when stressed. The researchers say the material could be incorporated into the soles of shoes to power portable electronics. . . McAlpine is particularly focused on biomedical applications for the material and says it could cut down on the number of surgeries that patients with implants must undergo. For example, doctors could place a power-generating sheet against the lungs during the initial surgery; the constant movement of the organs could help recharge a battery, McAlpine says. From MIT's Technology Review of January 29, 2010.