Unfortunately the world we live in suggests that yes, you can do what you want with the device. However, the OS is a licensed piece of software and can only be

Unfortunately the world we live in suggests that yes, you can do what you want with the device. However, the OS is a licensed piece of software and can only be used within their terms. It sucks, but desktop OSs technically have a similar right. While I have f.lux now on my phone, I'm happy.