Apple certainly was inspired by the look of Delicious Library but I’m not upset to have influenced them. For me the whole point of UI design is to move the state of the art forward for everyone. I’d be disappointed if Apple didn’t take my interface and use it, it’d mean Mike and I kind of failed.
I mean, I didn’t invent the push-button, but I use it everywhere in my apps, as we all do. Someone, somewhere invented it first, and I thank them.