Imagine being able to check an address or read an email, or listen to your music playlist without having to boot up your entire PC. The NVIDIA® Preface™ technology provides “always on” access to information on your Windows Vista PC, saving you time and maximizing battery usage for your everyday tasks.
This technology enables a secondary display that gives users the ability to view data from their notebook or PC through the new Windows® SideShow™ interface, a new feature of the Windows Vista™ operating system, even when the main system is powered down. Since the Preface platform is so power-efficient, it can run for hundreds of hours without draining your battery. Major manufacturers have recently announced notebooks with NVIDIA Preface built into the lid.
For more information about Preface, please visit this link: http://www.nvidia.com/page/pp_preface.html