[awaz]

You missed the point. You can of course choose the Search Engine but not the browser. Chrome calls home frequently. As Matt Cutts outlined in one of his posts(http://www.mattcutts.com/blog/google-chrome-communication/)

"If you are typing a search or url in the address bar, Google Chrome will talk to the current search service to try to offer useful query/url suggestions."

And since its "only cloud" device, most of the applications you will end-up using are Google products. Mostly because other players aren't yet convinced that all applications should exist in the cloud.

As far as trusting Apple and Microsoft is concerned, I think it is about the business model. Apple and Microsoft make money by selling Products and Software. Google on the other hand makes money by collecting your data. I do not understand why people fail to understand the difference.