I definitely see a lot of it in wakesurfing design, but I have a feeling that the sum of the whole is greater than the parts.
Also - there seem to be a lot of variations on them - and when I think "Simmons Planing Hull" I think of a board like this: http://thedegreeofslide.blogspot.com/2008/01/simmons-inspired-planning-hull.html
Notice the design details like the concave bottom between the fins, the stepped deck (very common in windsurfing - my main sport), etc.
I feel like a lot of the boards I see use one part or the other, but not all. Take the parallel rail line - I feel like I see this on "beginner" or "big guy" boards, but not on something that is intended to be super-high-performance (with some exceptions).
Also feel the thickness and stepped deck is often lacking.
I'd love to have something like the board in the blog link above, in a 4'6-5' ish length, 2" thick in the center, dropping to 1" at the rails, glassed in fins, the entire bottom and fins sanded with 600 grit to break the surface tension - just something insanely fast that still turns well enough (with the speed, the idea would be to turn it off the lip with only the back 1/3 in the water - so in theory it turns like a fish).
Just thinking out loud.