Gary Marshall: Windows 8 tablets: boom or bust for Microsoft?

Microsoft has big plans for Windows 8. It's designed to scale from titchy tablets to supersized screens, and it promises to be all things to all men.I hope it delivers, because if Windows 8 is a dud then Microsoft's stuffed.Ed Bott has been tracking the market share numbers, and he's spotted something that should make Steve Ballmer - and Microsoft's shareholders - nervous: Microsoft's share of web browsing has dropped below 90%. Some of that's due to OS X, but most of it is down to iOS and

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