Scheduled for release on March 13 in Japan only, "Calligraphy Training DS" is a family friendly game designed to help people correct and fine tune their Japanese calligraphy. It will ship with a specially designed brush stylus.
Also featured, interestingly enough, is a multiplayer mode for up to six people where friends and family can compete with one another to see who can draw the cleanest, most accurate-looking characters.
There appears to be some kind of story mode as well, where you guide a lone wanderer in his quest to complete 3099 different characters.
The original source is Game Watch in Japanese. Modojo has more details in English.