Stevo

Pan is a newsreader, loosely based on Agent and Gravity, which attempts to be pleasant to use for new and advanced users alike. It has all the typical features found in newsreaders and also supports offline newsreading, sophisticated filtering, multiple connections, and a number of extra features for power users and alt.binaries fans.

ndisgtk is a GTK+ based frontend for ndiswrapper, allowing an easy way to install Windows wireless drivers.

Miro (previously known as Democracy Player) is a platform for Internet television and video.
It allows you to download and watch videos from RSS feeds (including podcasts, video blogs, and BitTorrent feeds).

KDE OpenGL 3d Screensaver. Glowing balls fly and explode, lightning strikes them...

Fotoxx has filters for sharpen, blur, red-eye removal, stitching, rotate, resize, and many others, and is lightweight and fast.