Mike Dobeck
I am reading your book and must say, outstanding!
I have been teaching computer science for 22 years at Sierra College in northern California, and during that time I have read countless technical books. I can say that your book is the finest and most complete treatment of any book on any subject I have read.  
The only issue I have with the book is the cost of all the other books I have purchased after pursuing the reading suggestions at the end of each chapter :)
I would also like to add to your hall of shame for potentially deadly user interfaces — the dive computer. A dive computer keeps track of the nitrogen loading in a SCUBA divers tissues. This high-consequence device is designed to prevent divers from getting the bends.
I have yet to find a dive computer that is simple and easy to use. There are several documented cases of diver injury due to misunderstanding what the dive computer was telling the user to do.
amazon.co.uk  |  amazon.com...http://www.amazon.co.uk/Press-Interaction-Programming-Harold-Thimbleby/dp/0262201704/ref=sr_1_1/203-4139330-5984717?ie=UTF8&s=books&qid=1192227737&sr=8-1http://www.amazon.com/Press-Interaction-Programming-Harold-Thimbleby/dp/0262201704/ref=sr_1_1/203-4139330-5984717?ie=UTF8&s=books&qid=1192227737&sr=8-1http://mitpress.mit.edu/catalog/item/default.asp?ttype=2&tid=11265http://www.mitpress.com/presson