On my DS Lite I had the R4 cart setup to read .cbr(comic files) and .epub(book files). The app allowed for you to hold the DS Lite with one hand and read from two screens like two pages from a book. I have found a ereader app for the 3ds that I have setup via .cia file install, however the format compatibility is shit, and half of the epubs break. Also you can only read it with both screens displaying half of the same page which is a pain. So my dilema is this. Should I downgrade my sys nand to 4.5 so I cant run my old DS reader from the gateway bluecard. I have never seen anyone run a ds app from the bluecard. -does the screen get cropped down to old DS Lite resolution. -can the blucard even run old DS Lite homebrew? The downgrade would also be nice because of the easier exploit for gateway mode.