A Windows 8 demo was just released. Looks really cool. Check it out at Previewing ‘Windows 8’ as well as Microsoft’s Windows 8 Demo From D9 (Video) and Windows 8 partner demo. If you just want screen shots, check out this article on eWeek.com. Also read How Windows 8 could change everything which would enable the consumer to bring their latest and greatest Windows 8 device into the enterprise and have IT push down the Enterprise Desktop and run inside a Hyper V client container on the employee’s own Windows 8 Device.
UPDATE: The Windows Developer Preview is a pre-beta version of Windows 8 for developers. Download here.