Does anyone know of anybody who has tried, successfully or not, to shoot a 360x360 underwater pano?
I would guess that it would take a lot of Photoshoppin to get the images to line up since 1. there ain't no way you can get a perfect rotation around the nodal point, 2. you'll probably be at least a few inches off due to current or from wave action, 3. trying to get everything to line up for one shot is good, but staying neutral while rotating would be a huge accomplishment, 4. the underwater housing might get in the way requiring more photos than normal.
I'd like to try just for the fun of it to show folks what it looks like under an oil rig off the Texas coast. If you've never been under one underwater, think of it like a huge coral and barnacle encrusted reef stretching hundreds of feet vertically and horizontally. Tons of fish, lots of neat things going on.
I guess you could use it commercially also, since you might be able to entice scuba resorts to shoot local reefs or other hotspots to attract divers and snorkelers. Other than that, I don't think Flipper or Nemo have a lot of expendible income to contract a tour.
Ain't nothing friendlier in the world than a muddy wet dog.