Evidently Kotaku are hearing that the next update will include a "parental timer control".
What a rocking idea! I'm sure I saw a third party device that controlled how long the Playstation/Xbox could be on for, but to implement it in the firmware is a top idea. No more cries of "Let me just get to the end of the level....2 more minutes...just gotta beat the boss". Now, the machine tells you when enough is enough.