Sorry I am of no help here, but I am interested in the concept. Making a vehicle burn less fuel (aka De-tuning like the XFi) would allow us all to conserve quite a bit of fuel. Checked out the links and the controller for it is about $60 and the Fuel re-mapper is about $80... $140 isn't all that had to recoup with and increase of 5 MPG.
I am anxious for this thread to blossom into a spring project.
