Agreed. It is of-course not impossible, but it is almost impossible out-of-the-box (literally ;-)) I have a USAMO (Universal Sample-Accurate MIDI Output) device, but do not use it, because as I said, Atari is king here. :-) Not sure how the Midronome can solve the problem of midi notes coming inaccurate from a modern DAW? But maybe I do not understand it completly. Need to have a deeper look. Since some years I am using Linux with a Focusrite for mastering and audio tracking. Midi was bad with Linux and Windows since I got my first USB interface and went away from PCI interfaces. But this shouldn't matter too much. :-)
Note that this is an old version, I just saw the there's now the "Nome II", and at least for Mac, he has actually developed a USB protocol to provide a stable clock (which as you've already written is totally possible via USB, it's just nobody cared enough):
Thanks a lot!
The scotsman is cool and his t-shirt too. :-D T-Shirt says in German "Little pig".
Regarding "midi notes" Sim'n Tonic himself is saying this to the Midronome:
"Note that only these MIDI messages are simply forwarded when they are received, their timing is not changed. So if your DAW sends them with a lot of latency and/or jitter, the Midronome will forward them with the same latency/jitter. Actually this is a problem I plan on tackling as well [...]"
So the Midronome does not solve the problem of inaccurate midi notes coming from a modern DAW. The USAMO does by the way.. But only with one midi channel at once. And of course, coming back to the actual topic, the Atari hasn't a problem at all with accurate midi notes, it is absolutely tight at all 16 channels. So it seems there is indeed nothing comparable to the Atari nowadays. Maybe it will in the future.
Not sure if that is still accurate. This might only be available for Mac, but on the FAQ for Nome II it says this:
Can Nome II send MIDI Notes?
Nome II is like a MIDI hub, you can ask it to forward any MIDI sent over USB to one of its MIDI outputs. It will not only forward these instantly but merge them smartly with the MIDI Clock, without affecting it.