The problem is that we deliver everything via the web so people will barely notice if we move our stuff over to an alternative platform from Windows.
Microsoft knows it has lock in from a lot of people and it will abuse this. I think their aggressive cloud move with Office 365 and Azure's PaaS stuff is an example of how they are moving this forward further yet retaining a subscription. NOTHING is portable away from them without significant cost.
Edit: just the effort I started two weeks ago to move all my data to platform neutral formats and shift to Linux is less than 50% of the way through and that's just one person with 20 years of data.
Microsoft knows it has lock in from a lot of people and it will abuse this. I think their aggressive cloud move with Office 365 and Azure's PaaS stuff is an example of how they are moving this forward further yet retaining a subscription. NOTHING is portable away from them without significant cost.
Edit: just the effort I started two weeks ago to move all my data to platform neutral formats and shift to Linux is less than 50% of the way through and that's just one person with 20 years of data.