jsc :
The first problem is preference. The second problem is procedural. The third problem is fundamental...
A fourth revolves around what the Custodians of *your* data do with it behind your back.
By way of example: Chrome OS: "Your" data and apps must reside
'In The Cloud' because the OS itself is hardly more than a host for the Chrome browser. It lacks the capability to run applications and store data locally. So those things must reside elsewhere and be accessible via the Internet and a Browser interface. "Your" stuff lives in the cloud.
Well... Who owns the cloud? In this case, Google do.
Now, ask yourself "What does Google do for a living?" "How do they make their money?" The answer is they make their money by monitoring and data mining their search service and
sell what they learn to advertisers so that we
(consumers) may be better targeted by marketing.
Now: Ask yourself whether you trust people who already monitor, data mine, and sell everything that passes through their system to 3rd parties over whom you have no control. If you think you trust Google, ask yourself if you would trust Microsoft with the same information. Or Oracle. Or CSC. Now think again about Google... Uncomfortable with the idea? You should be.