Your ebay listing ought to mention this can also in theory be used in an A1000. Not too many 1000 accelerators out there.
The 2630 doesnt take SIMMs itself? Weird. Most CPU slot accelerators I've seen seem to take SIMMs, even if its weirdo GVP SIMMs. I also wonder if you could put on a faster CPU if you replaced the oscillator.
I think as an added bonus the 2630 is one of the few accelerators that let you install Commodore Unix. I've always wanted to play with that... mostly just curiosity though.