Nothing available yet to the public. Internally the specification, conAsm, and sim have been stable for a while, while the rest of the tool chain is struggling as we convert all our development environment to LLVM-related tools: CVS to git etc.
The gating event for public release will actually be the patents; we can’t put out a sim that shows how things work until the filings are in for those workings. And the tool chain without the sim is pretty useless. We had hoped to have it all done and ready for the public already – but you know how development goes, and it’s doubly true for a bootstrap.
Please be patient. We are impatient ourselves enough for all 🙂