HO Sports is pushing the market along to the next level with their evolutionary releasable binding system.
The snow-ski-like rail release system incorporates a dual-spring release in the back with a front release unit that has no moving parts. There is a lip on the front of a hollow rail-plate that slides into the front release. Front-binding flex is meant to stop at a point, in case of a fall, that should overpower the rear release springs and result in a release.
Overall the system looks solid. We're looking forward to seeing the production model.