Solar iPods from Apple?

Could we actually see the introduction of a solar-powered iPod by Apple in the future? Apparently, that day is still possible as Apple has just filed a patent for an in-screen/device-covering solar film for its gadgets. After all, iPods are frequently used gadgets, so the chances of them running out of juice while being used is pretty high, and having solar film to charge itself is a pretty nifty idea especially since power outlets isn’t exactly that easy to find when you’re out of a building. Hopefully solar technology will be more efficient by then to make this a viable solution.