The Inferno isn’t the only thing Motorola’s saving up for Mobile World Congress – the ZN300 is a simple little thing with an interesting key layout. It supposedly has a 3 megapixel camera and 240 x 320 screen, but about those two zoom keys? Photo viewing or video recording must be a pretty big part of the device… Extra pics of the ZN300’s UI show a pretty standard setup; MySpace, Facebook, and Opera apps will all be preloaded. Guess we’ll just have to wait until MWC to find out what the deal is…