Basically I just want an image viewer to which icon I can drop images and folders. This seems to get it almost right. Why not let me move to one image to next with arrow key immediately when bunch of images / a folder is dropped to app? Also, I would like to be able to zoom in and scroll when in full screen/slideshow (and zoom setting to keep from one image to next). But this thing is fast and generally no hassle. Seems that full screen and slideshow modes are almost the same, but that is ok.