Using its cost-effective ESRB method of announcing new games, Atlus revealed a new DSi program called PhotoWorld. As you may expect from a game with that title, it involves taking pictures with the DSi camera. Players shoot a self-portrait and then "customize the pictures with a variety of stamps, photo effects, and text boxes."
As Siliconera notes, Atlus already sort of has a program like this on DSiWare. Nintendo's Sparkle Snapshots is based on Atlus's popular Print Club (Purikura) booths. We look forward to finding out how this one differs -- there's absolutely no way it could be any more sparkly, that's for sure. Of course, we aren't even sure this is DSiWare -- while this sounds like the kind of thing you would sell as a download, all we know is that it's for the DSi.