Windows 8 is the upcoming version of Microsoft Windows which was codenamed Windows vNext. It is a family of operating systems by Microsoft for personal computers, dekstops, laptops, netbooks, tablets, servers and media centeres. Windows 8 supports traditional Intel and AMD processors with the newly added support for ARM processors.
Microsoft has not officially announced the release date of Windows 8. However, major medias excogitates that windows 8 may be available in late 2012. Here are a few screen shots of overcool Windows 8 developer preview(windows 8 pre release version)