This is the first time I've come across the use of code as a meaningful narrative element in a work of fiction. It's not exactly Nabokov, but this is a pretty wonderful story. RIP, John.
Yes, when I came to the "R781 thought about the situation. Here are some of its thoughts, as printed later from its internal diary file," bit of the story at first I thought 'oh, clever.' By the end I was really moved.