http://www.engadget.com/2009/09/24/video-phoenix-instant-boot-bios-starts-loading-windows-in-under/
new Instant Boot BIOS, a highly optimized UEFI implementation that can start loading an OS in just under a second. Combined with Windows 7's optimized startup procedure, that means you're looking at incredibly short boot times -- we saw a retrofitted Dell Adamo hit the Windows desktop in 20 seconds, while a Lenovo T400s with a fast SSD got there in under 10.