As someone who played the first two SQ games on Apple IIGS, then 3, 4, the SQ1 remake, and 6 on the Mac … I certainly hope the Spaceventure project comes to the Mac. I have swarms of iOS devices, too, but they're more about raw productivity for me and I don't do much gaming on them.
Speaking of which ... why didn't we ever get SQ5 on the Mac? Was that a Dynamix thing? I think KQ6 came out about the same time, so Sierra hadn't abandoned the platform entirely. It was years before I finally played 5 on a PC, and it became one of my favorites.