These sort of devices will be the kind of thing to usher in the acceptability of brain-chips and other such mind-reading devices. These devices will be introduced as fun and innocent, sort of like what happened with those club goers who got microchipped, but will be used to send information about your mental state to the government, who wiill be monitoring you to see if you are possibly engaging in 'thought crime', aka in a mental pattern that is a precursor for what they deem a criminal action. Mental slavery.