Is the digital pen mightier?

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*Source: News.com (http://news.com.com/Is+the+digital+p...ag=nefd.lede)*
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For decades, tech companies have been trying to create a digital pen that appeals to the masses. But after years of effort, the world isn't exactly overrun with high-tech quills.

A new crop of companies, however, say it's too soon to write off the idea.

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