>To sync a "last read page" across devices, you need to send a location back to Amazon. It's also appropriate to tie a location to a device, so you can pick the

>To sync a "last read page" across devices, you need to send a location back to Amazon. It's also appropriate to tie a location to a device, so you can pick the appropriate device to sync your position from. Why is location needed for that? Shouldn't a device id and account work just fine? I don't need to share my location to sync other devices.