Ruby as an HDL language? You betcha!
On the whole, it sounded hackish, bizarre and esoteric. What he did was modify the syntax and the runtime of perl5.004 (I believe) so that you could create a 54 bit integer (or a 27 bit integer, or...). That on its own may not have been terribly useful, but Marcelo also hacked in support for Verilog, so you could drive a Verilog design with a Perl script, and those Perl variables were the actual values moving through the Verilog design.
All in all it made a very interesting test framework for hardware designs. I think it was written under contract for Intel, so it's not publically available.
