Good news, everyone: today (and rather late) I've discovered that [KuickShow](http://userbase.kde.org/KuickShow) has indeed been ported to KDE4, contrary to initial rumours and creeping suspicions. Aaaah, that's so much better! Gwenview might be interesting for users who only want a red eye correction, but it certainly doesn't meet my needs. And my needs are truly very humble. I want the image to open immediately and without any borders, menus or further ado (in KDE, get rid of the borders via 'Advanced/Special Application Settings'). I also want to be able to rapidly adjust brightness, contrast and gamma of a given picture, which in kuickshow is as easy as pressing b, c, and g (plus shift to reverse the action). You should see the flabbergasted Windows users when the image magically transforms in front of their eyes without me performing any mouse acrobatics. 😄