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Even after the many announcements at this year's BlackBerry World Conference, Waterloo is keeping that patent train a-rollin'. In a filing granted today, we get a glimpse of what RIM could have up its sleeve, er, on its hip. The claims detail flexible batteries built into holsters that recharge your phone when you're on the go -- all the while communicating to your BB's CPU to bring you alerts through its own speakers -- thus avoiding muffled sounds from covered parts. That's all well and good, but here's the real question: will these things eventually play nice with fuel cell-powered Berries?

Etch-a-Sketch 3.0 hands-on (video)