Fuji updated the X100 with the X100S. The S stands for speed because this camera is crazy fast. And while the camera's internals got a boost, the X100S still carries the classic body of the X100.
Source: http://www.wired.com/gadgetlab/2013/01/ces-2013-fuji-x100s/
KLATENCOR KONINKLIJKE KPN LAM RESEARCH LIBERTY GLOBAL