It seems obvious now: Drawing training
Do you like to draw or paint, or maybe just sketch or doodle? Well, if you do, chances are you have the interest needed to buy You Can Draw Well in Ten Minutes a Day (1-nichi 10-pun de E ga Jouzu ni Kakeru DS). A DS adaptation of a popular how-to-draw book series, Draw Well uses audio and animation to walk kids through a simple drawing every day.
Using collections of basic shapes, the game teaches kids to draw a collection of more than 100 animals, insects, and vehicles. The drawings can then be integrated into a set of minigames or used in animations.
A training game about drawing fits not only the DS's most popular genre, but also its unique capabilities better than just about anything else on the system. It's just a perfect idea for the DS.
