All I can say is 2.0 is more responsive than 3.0.2. I had some degree of networking going in 3.0.2 with LocalTalk (and LocalTalk Bridge on the "bridge" 7500) but I couldn't get that going on 2.0 (probably because I just dumped the install disc to zip rather than doing a proper install. So I'm not really "using" A/UX.

I'd be interested to know how compatible those SCSI ethernet solutions are with A/UX. Getting one seems to be the best way to get my two compacts networked.