Version 0.1.0 of Cardinal can be downloaded from here http://rubyforge.org/projects/cardinal/ or it can be installed as a gem.
What is it?
Cardinal is a program to compile Ruby programs into Parrot code.
Cardinal will now generate Parrot code using the IMCBackend. Ruby code can be compiled and executed using the ParrotBackend.
It will only generate code for simple arithmatic expressions.
Running a program through Cardinal is currently an order of magnitude slower than using Ruby.