This will be huge!
Pod drives are very heavy duty and offer great efficiency and longevity, not to mention Hp's well over 1000. Getting them in single config's has been almost impossible. ZF is offering on for pleasure boats now.
ZF had seavee build a demo boat to test out their new a single joystick system but the efficiency of the system is really solid. In my boat this would be pushing 3.5 mpg @ 35mph +. ( I heard some unofficial numbers from seavee and they were great! They have build the same boat many many times with inboards and I/O's and they said nothing comes close to this pod) As fuel goes higher and higher single systems will be the most common configs.
The joystick is nice for docking but I like the single pod.
http://www.boattest.com/Engines/Engine-Test.aspx?id=440024&linkfrom=EmailFriend