What chance the Microsoft-free desktop in the real world?

The big news from the LinuxWorld Conference in San Francisco this week has got to be the IBM partnership deals with Canonical, Red Hat and Novell. IBM has, quite plainly, gone on the offensive and stated that in combining its Open Collaboration Client Solution software suite (with Lotus Notes, Symphony and Sametime) with Ubuntu, Red Hat and Suse Linux distros it can convince its customers to make the move to a Microsoft-free desktop experience.