Well I did a little more digging and I found out that in Korea PS3 only launched June 16th, DS Launched in January, and Wii has not yet launched. Apparently DS is selling quite well in Korea according to this link. I also found this blog that was suggesting 270,000 DS sales since January, but it has not been confirmed.
I'm guessing from the realtively consistent weekly sales numbers for Others on this site (no spikes for the above mentioned launches) that Korea is not actually being tracked, but that the Others numbers are being extrapolated each week based on the regions that are easier to track (NA, Western EU and Japan.)







