Yay! The Mac version was just released, for those that don't know. And it's great- everything is up-to-date with one of the newest MAMEs. I didn't get any errors in playing any games, which was great.
A few Mac bugs to point out, though, and I'm not sure how quickly they'll get fixed, since Bannister is on vacation... sigh... but here they are:
-Whenever you start M1, the games play music fine. But after a few games, the sound either does two things: It crackles incessantly, or certain games (especially Capcom games) get extremely quiet. Sometimes, game music won't play at all. The first time I tried the new version and went through a few songs first, the SNK games played silence. The only way to make these problems go away is to quit M1 and start it back up.
-Tetris Plus is still extremely preliminary, but you probably already knew that. Pretty much every track except for the first one crackles so much that you can't hear the tunes.
Regardless of these flaws, 0.7.6 for Mac is excellent and it actually seems a bit faster than before! And it's nice that the annoying bug where specific games would cause a Mac SIOUX window to pop up when selected (i.e. Toobin' and Vindicators) is long gone.
Thanks, R.B. and R.B. and everyone else who contributed to this!