Yonder is available for Windows, OSX and Linux systems.
At this moment, Yonder is pending review in the Ubuntu software center. If you are impatient, you can download the unpackaged binary file right now! Dependencies are qt, libvlc and libtag (which should be statisfied after installing vlc).
Generic Linux binaries need some more time.
If you like Yonder Ambience Generator, please consider a small donation to fund further development!