What are the limits for FFS file systems and assorted questions

[Eitan Adler]

Can anyone provide an up to date answer for the following:
http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/book.html#ffs-limits
Are the bugs listed still bugs?

http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/book.html#mount-foreign-fs
Is this completely true?  Should it be updated?

http://www.freebsd.org/doc/en_US.ISO8859-1/books/faq/book.html#alternate-directory-layout
Does this still deserve to be listed as a FAQ?

-- 
Eitan Adler