I would think it would be very easy to do a manual version of the Supra system...
http://www.youtube.com/watch?v=0QWyNThK8KQ
Looks like it could be retro'd as well since it's basically trim tabs. I'm sure they've beefed up the transom some though, guess we'll see. I'd love to see a kit to add this on to my Mojo!
2022 Moomba Mojo
2013 Moomba Mojo 2.5 (sold)
Tow - 2019 Ford F150 Ecoboost