If you’re looking to use your DS as a sketchbook or drawing pad, here is a DS paint application that turns your system into one. It’s called colors. All you need are a DS-compatible flash cartridge and a microSD card. It’s a pretty basic program, not even having layers or an undo option yet, but it’s still a pretty impressive app.
More features will be on the way soon, such as DS-to-DS painting that will allow collaboration. You can use a full-size stylus if the DS stylus isn’t doing it for you, and also export projects using Wi-Fi or microSD. Looks like you can create some real masterpieces. Check out a video below.