The GitHub Matrix Screensaver - Latest commits from GitHub visualized Matrix-style
Snarl - Snarl is a notification system for Windows.
Octohunt - Search to find developers in your city on Github.
Growl for Windows - Growl for Windows is a Windows-compatible version of https://alternativeto.
Codeology - Open-source algorithm that visualizes GitHub projects
Notify OSD - Canonicals on-screen-display notification agent, implementing the freedesktop.