APC 80
AKAI didn't build it, so I built it. Then I made a tutorial, and a number of like-minded control freaks built theirs. Woo!
Take an APC40 and an APC20, wedge them together - done! It's called APC80 because you can control 80 clips with it. You can call it APC60 or Masturbatron for all I care, but I call it APC80 :)