texture preview for displacement in Cycles? Why, when I'm using the Blender internal renderer, can I see my procedural texture (for my displacement), but, when I'm using Cycles render, I cannot? It's not like I want the procedural texture for texturing; it's for displacement, so why is it not possible to see this when I use Cycles? 

It's very annoying for me. Maybe there is a trick using the node editor to show this texture, but I don't know how do do that. I think it's the best way to have a preview directly in the properties panel.
This has been added as of this commit (will be in 2.72).



Any recent development build will have this.