Sony Ericsson finally announced their new S500 mobile phone that offers ever-changing themes and illuminations that change as day turns to night. It is 14mm thick slider that comes with a 262k color TFT 2-inch display screen, 2-megapixel camera, memory card slot and a GSM/GPRS/EDGE connection for your internet surfing. It is available in 2 colors, the Mysterious Green and Spring Yellow. Sony Ericsson S500 will be available in North America from Q3 2007. More pictures after the jump.