O i do not in the slightest worry about the proven stuff from the paint markers, clearly that is down to perfection, and adapting that over to airgun i dont see as a major challenge.
I am a bit worried about the airgun specific elements as that is a whole lot more than a paint marker, not least the barrel / barrels, and i am not even sure 3 barrels are needed off the bat. but offering that would indeed be awesome.
I will hope that they will offer a "cheap" option with just the one barrel
That is i think it is, been many a year / decade since i was spreading paint, so things there might have changed in ways i have not heard off.
I am keeping taps on these for sure, getting one or not, CUZ it stand a chance of at least to some degree disrupting our hobby, and thats a good thing.
PS. what others mention in regard to tube / smaller tube guns, that would be nice to see, a conventional rifle, where you cant see the air tube at all as it is encompassed by the wood stock or Metal frame, CUZ lets face it as long as you can give people say 100 shots in what ever caliber on a fill, that is still going to be plenty for most people used to get maybe 40 shots on a charge.
Personally i dont need "1000" shots on a charge in .177, 3 - 400 will be more than enough for me, not least if i get a really nice looking rifle, maybe even a PCP replica of a well known powder burner.
I would take a sweet shooting PCP M1 rifle in a heartbeat over a futuristic looking shooting machine, and i would gladly give up a massive shot count for that.