I've built myself a replacement for the gemini hand controller, because the original one is starting to wear out and the keys don't respond properly.
It cost me about $10 to make, so anyone with an older Losmandy mount with Gemini like mine (6 conductor RJ11 connector) might be interested. It's based on a $7 keypad from Jaycar.
There's a short webpage about it here:
http://www.acquerra.com.au/astro/equ...mini_hand_box/
cheers, Bird