Windows 7 killer feature: Power savings?

Microsoft's Rob Bernard, says energy efficiency is a core design element of Windows 7. But, are power savings enough to get you to buy Windows 7?

At Microsoft's Silicon Valley Campus, ZDNet's Sumi Das talks to Microsoft's chief environmental strategist, Rob Bernard, about power-saving features in the new Windows 7 operating system. Bernard says Microsoft made energy efficiency a core design element, with better battery optimization, and Bluetooth and DVD features that won't be activated until necessary.

But is power savings really a killer feature? What do you think?