Read recently there's going to be a English version, open beta around September? Not 100% sure, but this game is sweet!
Check out some screen shots.
http://www.users.on.net/~teengoten/NeutralB0010.jpg
http://img.photobucket.com/albums/v3.../wtfkorean.jpg
Then some movies, which I highly recommend to watch if your connection supports it.
http://myhome.hanafos.com/~catchrat/rf1.wmv
http://vod.x2game.com/rf/RF_Darkhole_final.wmv
http://vod.x2game.com/rf/RF_Episode2_divx.wmv
http://vod.x2game.com/rf/RFOnline_Demo_20010811.wmv
Open up your media player and paste the link in Open URL, if it doesn't play when you click it or something.
Enjoy! Hope I'm not late posting this heh.
Again so far this fan site http://rfbase.com/modules/news/ <- has the post news on the game so far. ;l