Devices are just an interface for a lot of people, they might use dozens of devices during the period we (nerds) own a single computer. From borrowing their fri

Devices are just an interface for a lot of people, they might use dozens of devices during the period we (nerds) own a single computer. From borrowing their friends tablet, to changing their phone, to using a computer at a library or their office, they don't have a stable local disk. The cloud is far more stable.