[tyingq]

"from a privacy perspective, I trust Google more than T-Mobile or Sprint"

From a privacy perspective, I would not trust an advertising company (Google) more than a telecom. Google is perhaps better about disclosure to a Government entity, but they would be worse about exploiting your data for their own ends.

[tyingq]

Seems many here do trust Google with their personal data. So, I suppose that implies they are not only a marketing company, but a good one :)