Just a note that adding the I2C EEPROM definition to the Lerdge pins and enabling #EEPROM in the configuration was all it took to get settings to save correctly. Next up, I want to take a swing at emulating the 3 button interface on the touch screen, since unlike Mickey, I don't currently have an encoder (it's on a boat from China). 

We're getting there. This weekend I'll be wiring the Lerdge-X into a printer.