Personally I'd be very happy too see an FPGA card that offered similar CPU performance as my 80Mhz Blizzard (100 MIPS) while remaining 110% compatible (add back the dropped instructions). It would of course be nice to see a card with even more performance but those extra MIPS wouldn't really get much use.
I think price is more important than performance anyway, it would be awesome to see a new 060 'like' FPGA card offered for less than $200.
The other thing to keep in mind is that because the rest of the Classic hardware is so slow (include the bus), there really isn't much point going above 130 MIPS (100Mhz Apollo).
Come to think of it, only DosBox AGA and NetSurf AGA need more than 130 MIPS!
Whole heartedly agree Compatibility and Price are definitely weight in factors when it comes down too it
