FOSS in violation of MS Patents?

Microsoft finally has thrown down the gauntlet and is claiming publicly that free and open-source software (FOSS) violates 235 Microsoft patents.

Claims of MS Patents Violations are:

• Linux is violating 42.
• Linux GUIs (graphical user interfaces) violate 65,
• Open Office violates 45,
• various free/open e-mail programs violate another 15, and
• assorted, sundry free/open-source software programs violate 68.