There are a lot of questions which touch the land somewhere between project management and software development. To show what I think about: agile bonds these areas together pretty tightly so questions on the subject are usually pretty good example here.
This question for example deals with FDD and XP which generally belongs to software development domain.
I believe it will be often very difficult to clearly draw borders between these two domains, but on the other hand I see trend to split these domains even more. So the question is: do we consider software development process as a part of software project management or not? Do questions about software development process belong here?