I've made MorphOS version of JAmiga 0.0.3 available for public now. It was ported quite some time ago and available for MDC readers, but if you missed it and you are still interested you can download it here.

Archive contains two binaries. One without JIT compiler and another with partial 68k JIT compiler. Also diffs for sources are there.

You still need complete binary archive from JAmiga home page.