graeme_p - 10:49 am on Jul 22, 2009 (gmt 0)

How would anyone benefit by doing it though? Do you think Windows users are all going to switch to Linux to use open source apps - or will any apps that use such licensing simply lose their Windows users.

MS do not necessarily benefit form people using open source apps on Windows. If Firefox ran only on open source platforms, IE would still be the only browser that mattered. Also the more people use open source apps, the more credibility it gains, and the easier it is to switch to using only open source.