Microsoft latest Operating system Windows 8 to be released in 2012 April ?

This latest rumor follows recent "hints" from Microsoft Vice President Dan'l Lewin that pointed to fall 2012 as the time that Windows 8 would be released to consumers. CEO Steve Ballmer also recently said that Windows 8 would appear in 2012, though his comment was quickly shot down by his own company, claiming it was a "misstatement."

According to Foley's source, Microsoft is looking to unveil an actual beta of Windows 8--not a pre-beta or preview version--at the company's Build developers conference in the middle of September. That will be the only beta for the operating system,

Mike Angulo confirmed at Computex 2011 that Windows 8 would use OEM Activation 3.0 instead of Windows 7 OEM Activation 2.1 which will make it less prone to hacks.
The new interface is primarily designed for 16:9 screen resolution, with 1366×768 and larger screens able to display two Windows 8 applications using "Snap". 1024×768 screens can display one Windows 8 application in full-screen, and 1024×600 screens can only use the traditional Windows Desktop. It has been confirmed by Microsoft that PCs with mice and keyboards can also use Windows 8.
Microsoft also announced that Windows 8 will use the processor and the physical memory more efficiently, to make Windows run more smoothly.