PHOTOSHOP - Pixel Bender adjustment layer

Adjustment layers are one of the most powerful tools in Photoshop.  I love them, but they have a pretty limited selection.  As a game developer I have often come across the need for the ability to write my own to accomplish my goals more efficiently - specifically with the ability to see the results of the filter in real-time like adjustment layers.  Use cases include visualizing/authoring texture channel data for shaders, or a real-time indexed palette filter (as described in my blog http://danfessler.com/blog/hd-index-painting-in-photoshop)

My suggestion is to create an API to create custom adjustment layers.  It turns out Adobe has already done quite a bit of the legwork with pixel-bender.  If there were a new adjustment layer type that accepted pixel bender files, then this would be a perfect solution (and is GPU accelerated to boot)

would this be a reasonable feature?