Even with today's wireless video game controllers, you can't stay untethered forever. After a few hours of gaming on the PlayStation 3, you'll have to plug in that SIXAXIS or DualShock 3 USB cable to charge. Starting December 18th, Sony Japan will offer an AC adapter intended for PS3 controllers at a price of ¥2,800 (just under $30). Like third party solutions we've seen
, it has two USB ports so you'll be able to do two controllers or toss in a Bluetooth headset
. Nothing yet on availability outside of Japan, but if we get word we'll be all over it, 'cause we feel slightly guilty for leaving the PS3 on overnight to charge -- what with the world's dwindling energy supply and all.