Red Giant Warp: shadow, reflection, corner pin

Red Giant Warp is shipping. Warp is 3 plug-ins that give you control over shadows, reflections and corner point warps:

"The Shadow tool renders realistic shadows for text or subjects shot on greenscreen, while the Reflection tool creates perfect mirror-like reflections. The advanced Corner Pin tool includes features for working with warped images, importing tracking data from Mocha for After Effects, and adding secondary transforms and motion blur, to heighten realism in any scene."
The Corner Pin filter should take care of all the problems that Stu Maschwitz and others have with the one built into AE; for more, see Mocha for After Effects +Corner Pin thread.

Update: Eran Stern has a tutorial on using the RG filter with Mocha.