Better get a DS now if you don't have one, because when Ragnarok Onlinecomes out, all DS shipments will by necessity be diverted to Korea. Ragnarok, for those of you lucky enough to avoid the onset of MMO addiction, is a hugely popular Korean MMO known for its adorable 2D sprites and mascot characters (at least, that's what we know it for.) Like MapleStory, we have no idea if this will actually be a DS version of the real game, or if it'll be a smaller-scale online game, or even online at all.
In the same press release, publisher Gungho Online Entertainment announced an aquarium simulator and a flower-arranging game. That's pretty great too.