CES 2011, Las Vegas - Microsoft CEO Steve Ballmer will be on stage tomorrow for the opening keynote at CES. Ballmer is set to make some announcements to Windows Phone, Xbox and Windows.

The main announcement is said to be news of Windows running on ARM chips. Sources are also pointing toward a show-off of Windows 8 for the first time ever.

ARM Chip manufacturers NVIDIA, Qualcomm and Texas Instruments have all signed-up to produce processors for Windows 8 systems. Ballmer is rumored to not refer to Windows 8 - but to "the next version of Windows". Microsoft have also promised a "major revamp" of Windows for slate applications with Windows 8.

Microsoft have recently hit Milestone builds - so not only do we know it's coming, but we know it's coming along very well.