I think the idea of a hygenic and private toilet in the cockpit is a great idea.
Since 911 I have found leaving the cockpit for a pee a much bigger deal. With the bullet proof door, dead lock etc, if the other pilot decided that they wanted to commit suicide or an act of terrorism, they could easily lock you out of the cockpit. I have the utmost faith in my fellow pilot but I like to cover for unexpected situations (in my mind at least) and being deadlocked outside is one that I can't...so now I don't go unless I am on terra firma.
The cost of a hygenic, private toilet in the front is probably too much, but if it isn't, can we please have a microwave and fridge as well?