It's little things like this that make me glad to be a nerd. Say hello to the Ninjapass DS Flash system, a nifty little 64 MB card that sllows you to - GASP! - run homebrewed content on your Nintendo DS. While the PSP requires a number of firmware downgrades in order to allow for homebrew capabilities (though these downgrades admittedly don't cost anything unless you fry your PSP), the Ninjapass system just plugs into your Nintendo DS's slot and runs, requiring no modification to the actual system.
The device comes with a USB 2.0 adapter for easy loading, and requires no specialized drivers to use; just plug-in and use. The only downside is the somewhat-hefty price tag; the $51.99 price might turn off some early-adopters, but anyone who's looking for making their own DS games might want to take a good, serious look.