Alright, so now that I've had about 3 months with this thing, I'd like to compile all of my top requests into a single definitive post:
1. The ability to feed live-audio into the resonator engine, similar to live-granular.
(Also the ability to feed audio from one layer into another. Better yet, one oscillator into another on the same layer.)
2. Live Granular buffer-freezing.
(Though, fully variable speeds would be IMMENSE.)
3. BPM-syncable envelope stages & Particle params (ie. position/ length - at least while playing middle C.) -- (
Major extra points for BPM sync-able LFO speeds in the Kernels engine, as opposed to being stuck to Hertz.) – Also it’d rock if the envelope delay param were a mod destination.
4. FM mod sources:
ie. oscillator to oscillator/ oscillator to filter cutoff/ oscillator to comb filter
5. +1 for routing digital filters in series.
6. The ability to allocate knobs of un-used oscillators to expose more params of a single Kernels engine to the mod-matrix for discrete modulation.
Maybe this would be most easily implemented if a Kernels engine on oscillator #2 could recognize params of a Kernels engine loaded onto oscillator #1. Then one would disengage K1 through K6 on oscillator #2 and have 5 more knobs to control and modulate oscillator #1. (There’s probably a cleaner way, but this seems reasonable to me.)
7. CC’s as mod destinations.

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8. Something like Rev2’s polyphonic gated sequencer or u-he's mod-mappers.
9. Either something like u-he/ Zebra's mod-mixers or Q/ Blofeld/ XT’s modulation modifiers.
10.
(Iridium specific) – CV Clock In to MIDI clock out. (At the moment, Iridium doesn’t send MIDI clock.)
11. +1 for envelope trigger sources.
12. An additive synthesis mode would be incredible.