It's funny. I own an original Mono/Poly and have sort of been lusting for the Poly D, then I see this video this morning and get quite excited....and I'm not sure why?
I think I always had a sort of wish my mono/Poly was a minimoog instead, even though in many ways the mono/poly is capable of a lot more.
The Poly D pretty much addresses that, but something tugged hard on my heart strings when I saw this.
For me I knew it was coming from someone, either Behringer or Korg, and I mostly was hoping it wasn't mini keys. Korg's keypads have been pretty unimpressive to me other than the weighted 88's. I"m sure the Kronos 61 has a good keyed, but its' out of my range. I've hated the feel of all their mini keys. (The reface is pretty good, though still...mini keys)
But I was also hoping for a couple other tweaks:
1. Arpeggiator up/down mode always repeats the top and bottom notes. I wish there was a way to change that.
2. Portamento is polyphonic even in monophonic mode. Personally I don't like that. It's not too bad at fast speeds and I often only use two oscillators, which diminishes the effect a little.
3. Built in Delay would have been great (delay is all over the introductory video) and also that poly D chorus for those who want to do a lot of polyphonic playing.
I also hope the pitch wheel isn't spring loaded. Its' nice to route it to the cutoff, and change filter settings in real time with the wheel and that would work better it you could leave it in position, like the original.
I need to see the price. It is is the same as the Poly D I would probably go Poly D, because it addresses all my gripes above except I believe the Poly D has a spring loaded pitch wheel.
If the monoPoly is less money, I am interested, because mine is very old, tuning is a wee bit suspect, and it might be nice to have midi (I never got the retrofit)
However It has inspired me to spend more time with my original! That's always a good thing!