It may, but as you know it is totally irrelevant for something as I/O bound as TCP/IP stack.
The performance difference I've seen between 020 and 060 optimized code has always been insignificant. This was, however, before gcc3/gcc4 so perhaps things have improved since then.
A 68060 version should be better than a 68020 version for the 68060 if the compiler can...
1) schedule instructions for the 68060
2) avoid missing trapped instructions (64 bit integer instructions only if no fp)
3) prefer instructions that work in both integer units of 68060
Most compilers generating 68060 code will do better with 1 & 2 while few understand 3 even though it can speed code by up to 2x alone. I would say a 68060 version is still justified for reasons 1 and 2. Separate 68000, 68020, 68040 and 68060 versions would be nice for stable major releases.
@olsen
GCC3 and GCC4 generate worse code than SAS/C. Switching to any other compiler for a 68k only release would be a waste of time IMHO.
I'm somewhat interested in RoadShow but I'm wary of orphaned programs with no bug fixes or source code available. Although you are a great Amiga stalwart, I would like some kind of future plan for the continuation of the product with or without you. I like the idea of a more reasonable price as a download from a website with a PayPal buy it now link. It's not that difficult to do anymore. I would buy the newest CED if it was distributed this way and was 1/2 the cost also.
