Good discussion going on in the other submission: http://news.ycombinator.com/item?id=4050490
The previous article on the subject explains what "structure, sequence and organisation" means for copyright, patents and APIs: http://news.ycombinator.com/item?id=4050490 (and the first comment by grellas is also highly recommended)
Good discussion going on in the other submission: http://news.ycombinator.com/item?id=4050490