Below the FEZ picture you have this text “*An4 and An5 are open drain pins with 2.2K pull up resistors”
#1. You forgot to mark An4 and An5 with an asterisk?
#2. On the right of the picture you have an asterisk on Di2* and Di3* - are they also I2C?
By checking the schematic.
The text needs to be changed to “Di2* and Di3* are open drain pins with 2.2K pull up resistors
Also indicate all I2c pins and serial comports pins eg. Comm 1, Comm 2, and Comm 4 Tx (Out), Rx(In) pins for easy user reference.
Not to be critical, but have someone proofread your FEZ/Mini/Domino Beginners E-Book. There are too many grammar and spelling errors. Please activate your spelling checker on this document because it is the reflection of your company.