Why Ultrabook Laptops Aren't Just MacBook Air Clones

Sleek silver Ultrabooks arriving from major PC manufacturers aren't just Apple Macbook Air clones. Some of them even have options that Apple's laptop doesn't offer. Here's a guide.

Source: http://feeds.pcworld.com/click.phdo?i=262b118b14f40ea7540734c4f1ac278e

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