They are shipping me a replacement. In the meantime, they have posted code and specs at
http://wiki.github.com/wikireader/wikireader
Here are some interesting items.
LCD Display Module
* Monochrome LCD module
* Resolution: 240 * 208 pixels
* Level converters on LCD module
* 4 bit interface to MCU LCD controller
Touch screen
* Capacitive Touch Panel
* Data sent via asynchronous serial protocol
* GPIO touch down indication
Debug connector
* 8 pads under a seal in the battery compartment
o The test jig connects to these using spring loaded test probes
* starting form the row nearest the batteries, left to right the signals are:
o 1st row: [BAT-] [PROG] [VSS] RXD]
o 2nd row [BAT+] [3.3V] [RESET] [TXD]
* PROG, RESET, RXD, TXD are all 3.3V signals referenced to VSS
* RESET → VSS for power on reset
* PROG → VSS and use flash07 to reprogram FLASH ROM
* BATT+/- for external 3 volt power supply
* 3.3V is the internal regulated power rail, it could power a 3.3V RS232 converter chip
* Do not inject power into the 3.3V PI, it is output only
* RXD/TXD are set to 19200 8N1 by mbr
* BAT- is not the same as VSS
Overlay 1 (fileloader.c)
This will load one of three files from the SD card depending on the code it receieve from the menu program A the time of writing these are:
* no buttons pressed loads KERNEL.ELF – This is the normal situation
* search pressed loads FORTH.ELF
* history pressed loads CALC.ELF
Overlays 2..7
These will contains various test programs used during production and hardware development.They consist of LCD, Function Key and Memory (SDRAM) tests. These can only be accessed from the console menu. The console port can be accessed without opening the case by removing a seal from inside the battery compartment; this port also can be used with the host-tools/flash07 a program written in "Python"http://www.python.org to reprogram the FLASH ROM.