I've modified gemcast to generate "permalinks" for each entry. It was pretty easy, but it's not perfect -- if the item to which a permalink refers has "scrolled off" the weblog, then the item isn't displayed. To fix this I would like to introduce a "single entry" view. I tried to get that working tonight, but it turns out that it will require some refactoring that I'm just not ready to take on at the moment.