I don't think persistence is necessary. How often do people actually power off their smartphone? What most people think of as the "power button" only locks the screen (and puts the CPU into a "suspend" state to save power). Most people would have an "uptime" of months on their smartphone.
I don't think persistence is necessary. How often do people actually power off their smartphone? What most people think of as the "power button" only locks the screen (and puts the CPU into a "suspend" state to save power). Most people would have an "uptime" of months on their smartphone.