Hi!
I have read in the release notes that AD's PDF exports now should be more compatible with FCPX, so I have tested it. I made a 1920x1080 HD image with three layers: a pixel-layer background, a text-layer and a shape-layer that I converted to curves. When I export a PSD and import that in FCPX I now get layers in FCPX, but I also get strange pixel artifacts as you can see in the image below.
When I export the PSD from a 16 Bit AD document ist does import into FCPX as just a solif white image, although Photoshop can open it properly.