This could be great for battery life, if it allows the system to better schedule tasks that were going to happen anyway. For example, consider a photo app that

This could be great for battery life, if it allows the system to better schedule tasks that were going to happen anyway. For example, consider a photo app that auto-tags people's faces: rather than running that battery-draining computation while you're using the app, it could run at 4 AM when your phone is plugged in and has been locked for a while.