@theducks
I guessed what you confirmed. What a pity. So many people out there, who change between devices and no standards for synchronizing them completely. Really strange that such stuff does not have a high priority for the providers of operating systems and applications.
Last year at world usability day in Berlin I listened to an interesting talk of Stefan Freiwald about multi device experiences in the context of webdesign.
http://2015.wud-berlin.de/events/mul...ive-webdesign/
He mentions the book "Designing Multi-Device Experiences: An Ecosystem Approach to User Experiences across Devices" from Michal Levin.
A lot to do.