http://gizmodo.com/5376443/windows-7-64-bit-windows-8-try-128-bit
sweet
We're big on 64-bit OSes, 'cause ours computers eat memory like this Obama eats children's dreams, but Microsoft's thinking about going 128 bit as soon as Windows 8, and most definitely by Windows 9.
That's the scoop gleaned off the LinkIn Profile for Robert Morgan, Senior Research & Development at Microsoft, anyway:
Working in high security department for research and development involving strategic planning for medium and longterm projects. Research & Development projects including 128bit architecture compatibility with the Windows 8 kernel and Windows 9 project plan. Forming relationships with major partners: Intel, AMD, HP, and IBM.
Robert Morgan is working to get IA-128 working backwards with full binary compatibility on the existing IA-64 instructions in the hardware simulation to work for Windows 8 and definitely Windows 9.
Ars has a ton more super-nerdy tidbits about what's possible in Windows 8 that's worth checking out, if you're a supernerd, anyway.
sweet