I still have my Poly-800, and it still works fine, right down to the noisy 256-note sequencer. My dad lent me the money to buy it in 1985 — I got one with the reversed keys, of course.
A lot of stuff was recorded on it that remains unreleased; “Ideal Planes” was probably one of the more listenable things I came up with, but I’m still going through cassettes from that era, and finding other segments and experiments that may be of interest.
I downloaded the the free version of the softsynth emulation this morning, though, because
“[It] raises the stakes slightly by offering two DCOs per voice – on the original, this was only possible when using the Double mode, which halved the polyphony. You can choose from two waveforms and each oscillator has additive harmonics ((16′, 8′, 4′, 2′).
Elsewhere, there’s a low-pass VCF, Noise, three envelope generators and a pseudo-stereo chorus effect. Enhancements in comparison to the original hardware include up to 64 voices of polyphony, and a ‘God Mode’ for real polyphony. The interface might seem a little fiddly, but MIDI Learn means that all parameters can be tweaked using a controller.” (from Music Radar)
Although I haven’t used the plug-in yet, I look forward to that extra DCO without the stolen polyphony. I’ll report back.