I had the same thought! I really want this as a screensaver. How did you manage to set that up? I would love to also have it running in the background, thanks. :)
I simply rename the .exe file to .scr and right click, installed it. I dont know this is the best solution but I found this. Oh and unfortunately the screensaver didn't quit to mouse movement or keypress. You have to press the Q key to that.
It would be awesome if there is an official screensaver version of this program.