Wave Simulator: An accurate simulation of a PPG Wave 2.2 synthesizer.
Together with Paul Maddox, I developed a hardware/software combination to drag the PPG Waveterm into modern times - Waveterm C. I haven't found the time yet to finish it - other projects, like VSTHost, consume too much of my time. Besides, the capabilities of today's average computers have grown to a point where it's relatively easy to simulate a complete synthesizer, with only minute differences, inside the PC. So... that's what I did.
As noted above, I'm also creating programs in the VST area (VSTHost and its little brother SAVIHost). In parallel, I also created a VST variant of WaveSim. This one works inside a VST host, be it a big sequencer package or a small "standalonifier" like SAVIHost or Tobybear's Minihost. It doesn't have the full feature set yet (the debugging part is still missing), and some parameters that are easily tweaked in the standalone version can only be reached by parameter automation, but it works quite well already.
Please note that the simulation really is as accurate as possible; that is, while it has a keyboard, this is not velocity-sensitive (notes turned on by MIDI are using the velocity information), but the PPG-style aftertouch can be simulated by dragging the mouse up and down on pressed keys. All the knobs and keys on the UI are implemented as automated parameters, so you can even record and playback knob movements and/or data changes to the current program ...