Windows 8 Developer Preview Released for download, the developer version is released for programers or software developers to test their software before releasing them as final version.
Windows 8 which is the next version of Windows 7, do not mistake by the closeness of numbering the Windows 8 is a vast improved version it lot of new features and ultra cool graphics/style. Specially designed for Tablets and touchscreen tablets, a complete new design of Windows Explorer which is the most used tool in Windows System.
Windows 8 Developer Preview release is a pre beta release version for developers to test their applications. Downloaded Software include pre-release software that may change without any notice. The Software is not stable, or may not operate correctly or work the way the final version of the software. The software should not be used in a production environment.
Windows Developer Preview with developer tools English, 64-bit (x64)
Windows Developer Preview English, 64-bit (x64)
Windows Developer Preview English, 32-bit (x86)
Windows Developer Preview works great on the same hardware that powers Windows Vista and Windows 7:
1 gigahertz (GHz) or faster 32-bit (x86) or 64-bit (x64) processor
1 gigabyte (GB) RAM (32-bit) or 2 GB RAM (64-bit)
16 GB available hard disk space (32-bit) or 20 GB (64-bit)
DirectX 9 graphics device with WDDM 1.0 or higher driver
Taking advantage of touch input requires a screen that supports multi-touch
To run Metro style Apps, you need a screen resolution of 1024 X 768 or greater
You can Download this Pre-beta software from Microsoft MSDN
The Developer Pre-beta release guide is available here.