[oh_sigh]

If they aren't copyrightable, couldn't they still be classes as a trade secret and still fall under IP law? Though I'm not sure if distributing the weights to people who sign a simple agreement to not redistribute would count as taking reasonable precautions in maintaining secrecy.

[cwillu]

If facebook freely distributed their trade secrets, I'm not sure they'd have any legal defense.

[hnfong]

I'm sure they wouldn't have any legal recourse on the trade secrets front if they distributed them to anyone who asked...