"Powered by two high-performance turbines and a Raspberry Pi computer, the little aquatic vehicle scoots across the water at up to 6 mph, controlled all the while by an app on your table or smartphone (both iOS and Android are supported)."
Interesting player; it doesn't appear to actually dive underwater. Focus seems more games than research.
Lovely tablet interface! Coupled with a water-resistant tablet like the Sony Xperia Z, this could be a lot of fun!