Plexus, a 3D particle system for After Effects from Satya Meka (@gutsblow), has been released.
A plexus (as in solar plexus) is a tangled network structure in biology. The plug-in creates something similar in 2D or 3D in After Effects. Plexus works with AE lights and paths with custom and shaded sprites, and OBJ 3D objects can be imported and rendered as plexus wireframes.
Satya posted some demo tutorials; there's more video, a free trial, and info on AE Scripts. Here's an intro and a nice example from a tester: