Thanks for that info.
Originally Posted by Schoenfeld
Such software usually doesn't like the ECS Agnus of the 600 as well, so why bother?
I find most stuff works fine with ECS Agnus. There are of course exceptions, but not as many as you'd think. The Agnus unfairly gets a bad reputation for incompatibility when actually the root cause is usually the A500+ / A600's Kickstart v2.0x which came out at about the same time. With a KS1.3 and FastRAM I found the vast majority of stuff runs fine.
I'd imagine a yes. The A603 won't be a requirement, just an option.