Sony might be bringing Google's mobile operating system to its Sony Walkman music players. But is it really capable of capturing more market share by using Android?

Remember the Sony Walkman? It was, at one time, the iPod of its day. No other portable media player was capable of competing against the Walkman. Everyone wanted to get their hands on Sony's stellar device. And every year, when Sony would tweak it just a little bit, we all jumped at the chance to buy the latest and greatest Walkman.

But today, the Walkman is just an also-ran. Apple's iPod is dominating the business. With a firm grip on the market, there's currently no sign that Apple will be relinquishing its lead in the PMP space anytime soon. But Sony hasn't given up...

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