Airwindows has released Point, an "explosive transient redesigner" plug-in for Mac OS X and Windows in AU and VST plug-in formats.
Here's what Chris / Airwindows says:
Point was introduced in 2007, just ahead of a series of spatializers, analog modelers, and stompbox-style FX that consumed months of work. The curious thing is, Point didn't. It's one of those odd plugins that only required an idea: 'what would happen if I did this?', and an afternoon of coding. And ever after, it's lived on as a mysterious and untameable plugin monster, secret weapon and mixer's friend, always just as an obscure Audio Unit... until now.
You get three controls: an input trim, the Point control, and a reaction speed. Point goes from -1.0 to 1.0 and 'dry' is 0.0. Reaction speed goes from 0.0 to 1.0 and there's nothing to particularly suggest where anything should be set... find out more at airwindows.com/point-vst
Price: Free - donations welcomed via Patreon (which will lead to more free plug-ins, Linux versions and open source code...).