If you use a thin client solution, say Citrix, where the actual desktop "computer" consists of a small piece af HW running Linux, WinCe or whatever, you have stored on the company's own servers what Google now offers based on the internet.

Dont worry abour Google suddenly charging a fee for accessing your own data. Microsoft already does, it's called a client access license. The punishment for not having a fully bloated Microsoft OS on every desktop PC with it's associated heavy maintenance, heat and noise, is that they charge you a licence per thin client for accessing your OWN data on your OWN servers running a Microsoft server OS.