Its only has 512MB of space and won't be able to run homebrew sorry. It does function as a passme device and is cheap. From reviews from people who have a clone product it has very long write to card times even taking up to 45 mins to put on one game and then saves don't always work right! Although once the games are on it they play as if they were on a real DS gamecart with no slowdown at all. The clone product is Ultra Flass Pass @ NDSGBA.net. The creators of the products say they are working to improve the software but unless we see sizes of 512MB not Mbit I don't think this will do well. I don think we'll see bigger sizes but not for a while. And their is a flash version that goes through the DS slot as well and its called the NinjaDS and uses flash media as memory. Problem is that it sticks way out of the DS slot and loooks horrible.