Hmm... Linux on an A600? What applications do you run??
I was indeed planning to use all the EC030-CPUs for the 600 card, but I might as well put them on the extreme-low-cost-board for the A1200 (the one that's supposed to replace memory-only cards). Haven't really made up my mind.
Did some work on the 56MHz version today: Board access and basic memory access works, but no burst yet, and no optimized access-pause yet. Still over 10 MIPS!