[Released: 2004/8] The DS/i is a dual-screen handheld console and resembles that of the multi-screen games from the Game & Watch line. The lower display is overlaid with a touchscreen designed to accept input from a stylus.
Recently got a DSi XL, but I'm having trouble finding an screen protectors for it. I'm thinking about using a 3DSXL one but I imagine the sizes aren't the same.