Sorry kiddies, your days of unlimited 360 playtime -- which seem primarily dedicated to screaming pre-pubescently into your headset while you trash us in Halo 3 -- are numbered. As rumored, Microsoft is unveiling new a new Xbox 360 Family Timer control for concerned parents that allows them to limit console time on a per-day or per-week basis. The child will be notified when they're play time is nearing an end, and the console will shut off once the limit is hit. The timer will be available in December as a download on Xbox LIVE. Microsoft is also teaming up with the Parent Teacher Association and Jerry Rice to raise awareness and plug "PACT," a family contract meant to get kids and parents talking about video game limits.