Mini Micro version 0.2 is now released! This version adds extensive sound support, including sounds loaded from WAV files and sounds synthesized in code. Grab the latest here:
See the development roadmap for details on how this fits into the grand scheme of things (hint: the only major feature not done at this point is tile maps!). And be sure to grab the Mini Micro Cheat Sheet, which gives you everything you need to know about Mini Micro and MiniScript itself in less than three pages!