From what I can tell the only similarity with the ACS is the cross section. In the ACS the force-draw is an upward slope, in this guy's design, the force draw curve is a hump, the weight dropping off like a compound. This would allow the bow to have more stored energy like compound. It probably won't be as efficient as a compound because the limbs more further.
If the materials in this bow are very durable, this would be an improvement to the compound bow because there would be less moving parts and be able to be stored in a smaller space.
Jason