In working on the post related to software updates and making sure it was easy to find the category feed JUST for that led me on a “round the world” kind of quest to find a way to put the category feeds in the footer of pages in WordPress. The first thing I tried was this this category livebookmarks plugin, which gives some options to browsers that recognize feeds in the header of the page. It’s interesting, but I may wind up uninstalling. What I HAVE found is this solution which was EXACTLY what I was looking for.
I hope to post the code details here, but they I’ll need to investigate how to get them to show up properly (some worked, some didn’t in my test.)