[threeseed]

What possible controls can Apple put in place though other than a checkbox for do/do not sync ?

And remember Apple is a positioning iCloud as a cloud for dummies solution so adding choice comes with trade offs.

[MAGZine]

Couldn't I apply the same argument for while google needs to send your call history to its servers to perform number lookup? Yet people cry fowl (rightfully so) about privacy implications.

[eridius]

Google has a track record of disregarding user privacy. Apple has the opposite, a track record of protecting user privacy as much as they can.