Not at the moment - we haven't found a good one to license. (it's a little challenging for an American firm to get a Korean publishing company to license us a dictionary...)
Another vote for Korean here. Seeing how well done the Chinese app is, I would be very interested to see how you tackle the agglutination aspect of Korean.
We do have a possible license for one now but I have absolutely no idea when that will be completed and signed, let alone when the dictionary might be ready - things are exceedingly backed-up in the Chinese publishing space right now.