If Microsoft can't use the Metro name, no one else can. Not in its company-owned Windows Store, at least. An update to the Windows 8 app criteria guide explicitly tells developers that any submitted Windows Store app with Metro in the title will "fail certification" - effectively, it's banned. There's a certain irony to the aggressive stance on naming when Microsoft itself still mentions Metro prominently across many of its pages, but the restriction isn't a laughing matter for developers already trying to support an OS that doesn't ship for another two months.
Engadget , Microsoft bans use of Metro name in Windows Store apps, Microsoft bans use of Metro name in Windows Store apps
