Ballmer previews Windows 7 [video]

At the Consumer Electronics Show in Las Vegas, Microsoft CEO Steve Ballmer opens the show with a look at the future of entertainment. He also shows previews the next Windows operating system, Windows 7.

Also see:

• Mary Jo Foley: Microsoft: Zune Mobile, no; Win 7 Beta 1, yes
• Ballmer's first CES keynote: "Vaguely satisfying"
• Photo Gallery: Ballmer kicks off CES
• Ed Bott: Six Vista annoyances fixed in Windows 7
• Five things Steve Ballmer won't tell you about Windows 7
• CES 2009: Gadget heaven open for business