Windows 8 Welcome Screen leaked screenshot after break. How is it? (Click to enlarge)
Doesn’t it resemble something? Somewhat like Windows Phone 7 Metro User Interface. Background image can obviously be customized. CTRL + ALT + DELETE seems obvious option to log in but there will be more options like clicking the image and logging in.
For Tablet versions, Windows 8 unlocking would be done by swiping a pattern on the skin. Thanks DownloadSquad.