A Microsoft Researcher has accidentally revealed some of the plans Microsoft has for Windows 8 and 9, in his LinkedIn profile
Robert Morgan, who has worked at Microsoft Research for seven years, posted on his LinkedIn profile that he has been, "Working in high security department for research and development involving strategic planning for medium and long term projects."
The high security projects he lists in his profile include 128-bit architectures for future versions of Windows, involving Intel, AMD, HP and IBM.
Mainstream processors mainly use 32-bit and 64-bit technology, which is regarded as enough to cover almost any conceivable applications. Graphics processors, like the chips used on the Sony PlayStation are based on 128-bit technology, to improve the parallel processing required to render computer game graphics in real time.