It's become one of the most persistent arguments surrounding Nintendo in recent years: should it take its games — or versions of them — to mobile platforms? It's an argument with no end, but Nintendo does like to tease, and it's now come up with a series of officially licenced iPhone cases to remind smartphone owners of why they may want to try something different from Angry Birds.

Nintendo has an agreement with iPhone accessory company PDP to produce the themed cases, which show characters and franchises such as The Legend of Zelda, Mario, Luigi and Boo. Some snazzy designs, though we'd argue that the Zelda franchise wins on style points.

Still, we've attached the images for your viewing pleasure: do any of these tempt you?