Check this out on the US patent website, looks like a Kawi with a roots type blower on it, doesn't appear to be a different hull or top deck. Does has an application date of 8/11/05.

Kawi with Blower

[0012] The personal watercraft equipped with the mechanically driven supercharger, such as Roots blower type supercharger or Lysholm compressor type supercharger, can improve operation while ensuring high power output from the engine, since delay in the response to the rider's throttle operation is less likely to occur.

looks like a roots.....lets see if thats what they put on the market. this isnt what i had hoped for.......but its a step in the right direction....and...it will not make the same power the riva kit currently makes for the 15f.,..perhaps i should say, thats jmo.

I doubt we will ever see something as powerful as Riva's version from an OEM but wouldn't be suprised to see something in the 200-225 hp range from all within the next few years...

Just my own opinion also.