I noticed an image of the Minibrute's interface circuit board had some unpopulated sections above the pitch and mod wheel cutouts on the left side. It looks like a couple of pads for resistors, but what really caught my eye was the outline for a potentiometer and its pins.
I'm curious what this originally did, and whether or not it could be activated.
While I'm not a modder or circuit bender, leaving usable access points on the circuit boards (ala Korg MonoTribe) can ignite some interesting third party products.
Image from audiofanzine's review of the Minibrute interface board follows: