I think self-tacking jibs are fairly common on cruising boats, aren't they? We had an Irwin 37 that was built in the early 1970's, and it had a club-footed, self-tacking jib. I believe it was called a stays'l. It was hanked onto the babystay. The forestay was used for the genoa.

The self-tacking jib makes life easier for short-handed cruising. Our boat was ketch-rigged, so if you were sailing with the main, self-tacking jib and mizzen, all three sails were self-tacking.

So when the Nacra 6.0 came out originally with a self-tacking jib, I thought of it as an old monohull system that was being adapted to catamarans.