Steven Sinofsky discuss the Windows 8 SkyDrive integration in his latest post on the Building Windows 8 blog

Many folks reading this blog are active users of SkyDrive and Mesh, both part of the broad set of Windows Live services (like Hotmail), and the Windows Live Essentials programs (Messenger, Photo Gallery, Movie Maker, Mail, and more). With their introduction and with Windows 7, we have talked about how these services really complete the Windows experience. As we developed Windows 8, we thought deeply about how these services can take an even more active role in completing the experience—offering a cloud service for each and every Windows 8 customer and all their PCs (and phones), should you choose to use it. In previous posts (Signing in to Windows 8 with a Windows Live ID and Extending "Windows 8" apps to the cloud with SkyDrive) we kicked off talking about cloud services, how you can automatically roam your settings to multiple PCs, and how applications can take advantage of this roaming. In this post, we will show you three cool things that you will get by choosing to sign up and use SkyDrive with Windows 8.

  Connecting your apps, files, PCs and devices to the cloud with SkyDrive and Windows 8