Logo interpreter written in Haskell, specialized for turtle graphics. Still very much a WIP. Lot of the language still needs to be implemented, but it is fairly functional already.
More info at http://deepakjois.github.com/hs-logo
Follow the installation instructions
You can now try out some logo programs in the examples folder
% dist/build/hs-logo/hs-logo site/examples/sources/snowflake.logo -o ~/tmp/snowflake.png
% dist/build/hs-logo/hs-logo site/examples/sources/design1.logo -o ~/tmp/design1.png