Guile is a great little Scheme. I found it to be a very welcoming environment to program on Linux and I'm having a ton of fun relearning Lisp with it. Having tried using SBCL as a "Unix-ing with Lisp", Guile was so much easier. It Just Worked the way I expected when touching the OS, compared to CL's crazy filepaths and time epoch.

I've also greatly enjoyed reading the compiler/VM backstory on http://wingolog.org/ . It occurs to me that if you have an efficient Scheme VM, you could use it as a target for a lot of other languages and get something of an 100% OSS .Net or Java polyglot ecosystem going. Parrot was the previous hope but it seems to have fallen into being a mostly academic exercise.

And then there's "GuileMacs", which seems to get closer to a reality with every push. Not being a native Lisper, I think Emacs could use a boost from having a faster VM and lexical scope.

Really there's just a lot to love about Guile. I'm excited about all the activity and attention it's getting.