29th of February was a big day for next version of Windows, Windows 8 was announced for consumers in that day.
This is a new era! In order to improve windows operating system, over 100,000 code has been changed...

You can download the Consumer Preview at http://preview.windows.com/
Here is Nice video to Meet Windows 8!
Go and test it now! In the coming days Windows 8 Development tutorials and all related info will be here.