This is a terrific article exploring how Microsoft has changed tack over recent years, moving focus from Windows to the Web.  It's been a terrific success for them. 

At Dillistone Systems we are (in our own, small way!) following a similar strategy.  We offer a fully web-delivered version of FileFinder for clients who wish it and our Outlook Integration is not limited to the Windows version of the App, but offers identical functionality inside Outlook on the Web and Outlook on the Mac.  It's the Office 365 approach.

Business computing today is not just about delivering old fashioned Windows Desktop software - it's about making users productive on any device.