The next version of Windows will be able to show you the same Start screen across all your Windows 8 devices.
Investigating the latest enhancements destined for Windows Blue, Supersite for Windows creator Paul Thurrott was greeted by the same Start screen on two different Windows 8 PCs. This means that users who log in with their Microsoft account will see the same Start screen tiles, layout, and color scheme across all their Windows 8 devices.
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Windows Blue to let you sync your Start screen across devices | Microsoft - CNET News