Sony’s Shuei Yoshida on Twitter has confirmed that you can charge your DualShock 4 controller will the system is off. This means that the PS4′s USBs ports will remain active, and allow the controller to be charged at anytime. Yoshida also confirmed that Navigational Controller, the PS3′s Move controller, will work with the PS4, however the PS3 Eye Camera won’t work. You’ll have to buy the new PS4 Camera for that. Source - NextVG