Pictoblog, picture blogging with the DS
Thankfully, there are several homebrew projects that better realize the DS' potential as an instant messenger or a canvas for digital artists. Pictoblog is another application that extends the system's capabilities, enabling users to sketch something out on the handheld's touchscreen, and upload the picture to a post on their blog. Pictoblog works with a number of CMSs like WordPress, Movable Type, and many others.
Developer 0xtob has set up a test blog for users to experiment with, but it probably won't be long before the site is flooded with crude illustrations of the male anatomy.