i just bought a Nintendo DS and the prospect of holding all my backups, videos, music, and homebrews on a microsd card has boggled my mind. so i'm looking to get a hold of one of these cards asap. i really want to buy the R4 over the other similar homebrew cartridges bc of it's media playback. i'm also looking for the R4 that does not have the spring loaded microSD slot. thanks. wyatt.