The new motors that came out 5 or 6 years ago have been named short tails and are much faster than the old ones. The surface-piercing prop used on these motors is a third of the way out of the water when running on plane. The companies who make them are Pro Drive, Gator-Tail, Mud Buddy, Go-Devil, Beaver-Tail and Scavenger. The ones you are talking about they call longtails now. They've been used in Asia for a long time.
The one in the photos is a Mud Buddy HyperDrive. And, yes, they are a VERY cool motor.