This is very good news indeed. Until someone invents and certifies a low-cost turbine, diesel engines are the way forward, but OEMs and end-users are a conservative bunch, so getting a big GA name behind the brand will work wonders.
My bet is that within a year or so we'll be seeing this engine in several airframes. Cirrus, Maule, Cessna and Piper must all be contenders. My bet is that Cirrus will get there first.