Sorry, must've been unclear, meant exactly this, contacts sharing with AD has been optional from start, giving android access to telephony functions (premium SMS sending for example) doesn't seem to be integrated this way. The sandboxed android is becoming more and more able to interact with non-android part, without letting user choose which part they are fine with (release notes also mentioned SD card access, but one place mentions android access to SD card, the other option to format card from settings, so not sure about this one)