Pulling Focus (Hitchcock Vertigo Effect)

It would be cool if camera had the <Apple Key> Dolly Effect that so when you
dollied the camera closer to the object, the FOV automatically became more
wide angle to compensate for the move forward (Think Jaws, Vertigo)

In 3ds Max there is a camera controller script that allows you do such.

It would be cool if you could use scripts like that.

Maybe for Motion R4?

The Zoom Layer behavior (under Camera behaviors) does exactly that.