Wrong, the 68010 does not have an FPU. On-chip FPUs arrived with the 68040; 68030 and lower have to use external chips. The only difference between the 68010 and 68000 is that the former has a special 2-byte instruction cache for very small loops; plus it handles exceptions a bit better, putting more useful information on the stack. It is not worth your money going for a 68010 under any circumstances.
The 68010 also has the pins for an external MMU, I looked into fitting one into my A500....
I think the 68010 would make a good project for a linux box, because of the possibility of using virtual memory...
In reference to the other point about getting together and manufacturing limited runs of accelerators etc, I have thought that recently myself. I remember DCE made great accelerator for the A500, with SCSI II connector, 3.5" IDE, 2.5 IDE and an 030, and people tried to petition them to do another run. If we could all get together (and possibly design our own) and get a run done, that truly would be great. But hell, this is the Amiga community!
