projectM - projectM is an LGPL'ed reimplementation of Milkdrop under OpenGL.
Particle Flow - Vibrant particle effects for your Android live wallpaper featuring up to 5-point touch animations.
Audacity - Audacity is a free and open-source audio production software suite that includes a surprising array of editing tools and recording systems.
AMOLED LiveWallpaper - Interactive display of fluorescent lights for your Android background.
Free Audio Editor - Free Audio Editor is a sound editor program for Windows.
Fluid Simulation - Relax with beautiful, fluid particle effects that react to your touch.