I was linked to this project on git hub that aimed to show an application written in rust running freestanding. After looking through the code I decided to play with the language my self. I gotta say, I really like it's syntax. I spent a good 15 minutes or so just playing around with it. Not something I'd use day to day (not just yet at least) but definitely something I'd say is worth checking out.
It looks very interesting and according to wikipedia it offers pure functional support. I thought it was compiled, and thus freestanding already, unless I am not understanding the definition of freestanding? I think I will try it after I am done learning haskell.