We thought it might be a joke when it started making the rounds a few days ago, but Boing Boing has found a site that's selling it, albeit in Italian. (At least it's not in Latin.) It provided this direct translation of the description for the digital artifact, which is made by an Italian company called Prex: "The Saint rosary is recited by a feminine voice and a chorus of persons who answer. The digital rosary Prex has a push-button in order to select the day of the wished week, with its mysteries."
Maybe Latin would have been better after all. It could be worse: Given its shape, we thought it might double as a mouse.