OOH, New Ijji FPS is out. Alliance of Valiant Arms, check it out at ava.ijji.com. It's really fun to play, and really good looking. It's more like COD4 than CA or SF. Great MMOFPS. I seriously advise you trying it. Really.
And today they added Left 4 Dead mode (well, "survival mode", but w/e), so that's cool too.
AVA>SF>CA