Maybe it isn't communicating with Google servers in real-time, but I'd be shocked if Google wasn't uploading all the data gathered after the fact.
> Until a device is actually released that requires you to upload all data
No, no, it won't be required... it will just be on by default, and the opt-out will be buried in a submenu hidden under the "Advanced Developer Options" section.
> Until a device is actually released that requires you to upload all data
No, no, it won't be required... it will just be on by default, and the opt-out will be buried in a submenu hidden under the "Advanced Developer Options" section.