MAWAR4D A smartphone is either a cell phone with PDA capabilities or a traditional PDA with added cell phone capabilities, depending on the form factor (style) and manufacturer. Smart watches offer some PDA functions in a wristwatch form factor. A number of different operating systems, including Windows Mobile Pocket PC Phone Edition, the Palm OS, the Blackberry OS for Blackberry smart phones, and the Symbian OS for smart phones from Panasonic, Nokia, Samsung and others. Related devices include ultraportable computers, smart watches and multimedia players. This engine was .045 cubic inch and used some parts from Mel Anderson's Spitzy model airplane engine, however the bulk of the engine was Cox's design. A memory card reader is a device for accessing the data on a memory card such as a CompactFlash (CF), Secure Digital (SD) or MultiMediaCard (MMC).|Kamen Rider Double (W)