I’ve never seen Justin Maller’s art before, but I’m thankful Lee Russell tweeted it. Maller creates an eclectic range of geometric art at his Facets site and sells much of it as prints. He also makes it available as iPhone wallpapers with Facets 365. The app is simple but polished, with a great swipe-up gesture to save his art to your camera roll which you can then set as wallpapers.
Maller’s prints are priced pretty well too. I might have to proposition him to make Horizontal available for my office.