I bought the X20 to broaden my focal length, the fixed 35mm on my X100s was not enough in some situations.
The X20 is a great camera with good IQ, fast AF and more than enough ISO handling.
The downside is the small sensor, 1/7" ,wich don't really blow you away. It does the job and the body is almost as sexy as the X100 body.
If you want a small pocket camera for snap shoots on vacations or family get-togethers, then this is the perfect camera. If you are looking for some more serious photographing i would recomend X100s.
