What's the Deal with Windows 8.1?

Scott talks to Pete Brown about the upcoming Windows 8.1 update. What does it add to Windows 8 and will we care? How does 8.1 change the start screen, the windowing environment, and how apps work and update? What about power users with multiple monitors? Also, we hear about how 3D printing is coming and its drivers are built into Windows 8.1.

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