Thanks for your post. 3D PDF does not support annotations or storyboard title/descriptions, so that is why you aren't seeing those tags as available. The only outputs that currently support the publish of these Title and Description fields is Publish to Mobile (.ipm) and Publish to Flash. Publishing to 3D PDF will only give you the ability to play the animation and manipulate it in 3D space.
We are pursuing other solutions for this disconnect, so please stay tuned, but for now those are the available options.