The claymation duo of Wallace & Gromit stormed televisions, movie theaters, and bookshelves with their adult and kid-pleasing adventures. Now they’ve cornered the iPhone market as well, scoring a half million downloads since a publisher featured them in a comic book app. The news caused eBook blogger Mike Cane to wonder: “FIRST eBook best-seller?!”

Called ‘The W Files,’ the free app is part of a series of comics. The next issues cost 99-cents apiece in the app store. As of this writing, the free app is ranked number two in the “Top Free Apps” list in the App Store Books category. What do you think?

Here’s more from our digitally obsessed sibling, eBookNewser: “What are England’s most popular exports? Well, number one has got to be Marmite, that almost unswallowable, tar-like spread that comes in a tiny jar and scares Americans. And number two might be Wallace & Gromit, that claymation pair … Ned Hartley, the editor of the comic, said, ‘We’ve been amazed at how well our first app has done–Wallace & Gromit is such a great brand, and iPhone users obviously love them as much as we do!’”