Hi,
This may be of help to someone (or not ;)! Following the request in the 'Laptops' section of the wiki to send in code, here's my attempt to implement an opaque programmer for the WPCE775. Obviously programmer_table.c/programmer.h need to be updated to reference the programmer, and the Makefile updated to actually build it. i8042 code is there to reset the KBC as the trackpad will go crazy after swapping the EC to Flash Update mode. This is very much a work in progress. It's only been used to write/erase a single sector so far. So use at YOUR OWN RISK!!!
Hope this helps somebody,
Celliwig