I just got my ds lite a week ago, and have been reading about these "flash carts". Being brand new to the ds, and not knowing the technical lingo, I REALLY need help here! I really want to be able to use the Day planner program on my ds, along with some of the other homebrew apps that were listed. As a side not, what is a ROM? I am not asking for one, just trying to understand wtf it is I really just need the idiots guide to this flash cart/ROM thing! Any help is mega appreciated!!