Microsoft has released the Windows Live ID Sign-in Assistant 6.5 Beta for Windows7 users enabling them to link their Windows7 user accounts with Windows Live ID’s. The Windows Live™ ID Sign-in Assistant 6.5 (Beta) installs the Windows Live ID online provider for Windows® 7. By making it possible to link a Windows Live ID to a Windows 7 user account, this online provider helps enable Windows 7 applications to deliver great features like sharing documents, pictures, music, and video.
Benefits
Through the online provider, the Sign-in Assistant helps a Windows 7 application running on one computer identify and communicate with other computers that are associated with the same Windows Live ID. Just by linking your Windows Live ID to the user account on each Windows 7 computer you own, you enable those computers to identify each other and work together more easily than has been possible in the past.
Download Windows Live ID Sign-in Assistant 6.5 Beta
so good, great idea