KuickShow,
a very fast image viewer/browser.
There's some screenshots and tarballs for downloading at http://devel-home.kde.org/~pfeiffer/kuickshow/
KuickShow was the "Application of the Month in January 2004 on www.kde.de.
Some quotes from users:
"I just wanted to say thank you for kuickshow. I support a few desktop Linux
users, and they all picked kuickshow as their default image viewer. It has
no obtrusive GUI and is simple to use: They can click on one picture, then
go through all the pictures in the folder using the mouse wheel. In my
experience, that has been very popular."
"Kuickshow is the best image viewer for KDE."
"Zuerst möchte ich mich für den ersten wirklich schnellen und brauchbaren
Viewer unter Linux bedanken, Kuickshow ist wirklich ein gelungenes
Programm!"
"I just wanted to thank you for this great piece of software which allows
me to do just what I want. View and cycle through pics without
complication."
"First let me thank you for your work with KuickShow, i
use it very much since im a photographer as a hobby
and helps me lots with my photos."
"i am a fan of this great viewer."
"Kuickshow is a really great app! I use it exclusive for showing images."
KuickShow is available in the kdegraphics package since KDE 3.0.