Onyx, the lovely open and extensible Flash-based live visualist tool, now runs on Mac as well as Windows. (Next stop, since it’s built in Flash: Linux.) And the latest build has some great new features:

1. Snap to tempo, tempo-synced filters
2. Build your own TempoFilters
3. Mutable bitmap filters
4. “Mix files” for saving multiple layers and filters
5. MP3 visualizations

Lots of new UI tweaks and keyboard shortcuts, as well, plus a home on Google Code. Add that to great features like the ability to use flickr streams.

Sounds like a must-install, even if as a secondary / backup visual tool.

Download Onyx
Demo Onyx