Ah, that's really neat. Well I clicked on the Home Depot link and it says "this product is not available at your store" so maybe that's why I haven't seen it. Perhaps it's only commonly in stores in the North East? Much as I'd love a yard that smelled like chocolate, or cocoa I also have a cat that goes outdoors, so I couldn't use it either.
Down here in FL the "environmentally correct" mulch to use is Florimulch made out of the melaleuca tree, which is an invasive and makes a terrific mulch that has tea tree oil in it. It is naturally repellent to insects, specifically termites.