Came across this small yet interesting photo editor. You can download it from [here]. Try to do some 'magic' to this photo taken during the KLIMS. This kind of blur background effect normally can only be taken using 'very fast, large aperture' lens. But a little photo editing can have this effect, too... This is one of the favourite gals of my buddy... ;p

Look carefully, the face of the gal looks sharper after editing, and the skin is smoother too.