Liveblog today: Google Chrome OS press conference

IBM launches new Netbook software in Africa
IBM partners with Canonical to unveil new Netbook software package that uses a Linux-based operating system and cloud computing.

Microsoft issues critical Windows patches
The software maker releases five operating-system related updates as part of its monthly Patch Tuesday.

OpenCL: Parallel programmers' new best friend
OpenCL, created to support parallel programming in Apple's Snow Leopard operating system, may become the new world standard for parallel programming on all platforms.

Researchers prove kernel is secure
An Australian research organization says it has absolute mathematical proof of the security of an operating system core.

Live: Microsoft, Nokia ink mobile Office deal
As first reported by CNET News, the tie-up means that a mobile version of Office will be available for the first time on a cell phone using the Symbian operating system.