From the Website
Marc showed us how to write a simple Scheme to C compiler, in Scheme. In only 90 minutes! And although not supporting the whole Scheme standard, the compiler supports fully optimized proper tail calls, continuations, and (of course) full closures. The compiler is implemented using two important compilation techniques for functional languages: closure conversion and CPS-conversion.
Marc Feeley gave us another really good presentation. It was more technical than the previous ones, but it was definitely worth it. (I think this may set the tone for future presentations... we'll see!)
The presentation is available in PDF and AVI format.
(Note Video files are huge)