I have followed the book as far as I can tell and have gone back and rechecked things (I'm up to page 96).
The application works in that I can type in a list item and add it to the list. A new list item appears each time I add one, but I can't see the text for any of them. I thought it was a typo for the text color, but I have even copied the text color line from todolist_item.xml:
Into main.xml to change the edit text color:
android:text="New To Do Item"
This text properly changes color for the edit box, but I can't get anything to appear in the list. The paper color and margin lines are drawing fine just can't see any text.