[via OSNews]:
"By all early reports, Windows 8 is going to be a good operating system. Microsoft's hegemony may be crumbling in a mobile computing onslaught, but its core empire remains undimmed. However, whereas Windows 7 had three versions, Windows 8 will apparently be ballooning to 9 versions. According to the Windows 8 registry file, the nine versions are":

• Windows 8 ARM edition
• Windows 8 Starter Edition
• Windows 8 Home Basic
• Windows 8 Home Premium
• Windows 8 Professional
• Windows 8 Professional Plus
• Windows 8 Ultimate
• Windows 8 Enterprise Eval
• Windows 8 Enterprise

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I understand the ARM and Enterprise editions (and that Microsoft has traditional done this with Office, but why so many Home/Pro editions? Help me understand this.

Microsoft: We Can Remotely Delete Windows 8 Apps
Like Apple and Google, Windows Store will include a 'kill switch' to disable or eliminate rogue apps
http://www.computerworld.com/s/article/print/9222518/Microsoft_We_can_remotely_delete_Windows_8_apps
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G.the.freak.
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"In cases where your security is at risk, or where we're required to do so for legal reasons, you may not be able to run apps or access content that you previously acquired or purchased a license for," said Microsoft in the Windows Store terms. "In cases where we remove a paid app from your Windows 8 Beta device not at your direction, we may refund to you the amount you paid for the license," Microsoft added. The company also noted that along with the app, it may also scrub data created by the app from a device. "If the Windows Store, an app, or any content is changed or discontinued, your data could be deleted or you may not be able to retrieve data you have stored," Microsoft said.