[pureIDEOLOGY]

More worried about NSA correlating the two after getting the data from Google, but the one good thing about their centralization model probably is that with millions of users to a central server (and something you do as often as texting) this makes timing analysis extremely difficult.

[jjnoakes]

I have no data to back this up, but I bet patterns would reveal much more than you would intuitively think.