PaX is developed independently from and usually shipped with grsec patches. AFAICT Spengler's not directly involved, and Torvald's comments don't reflect on them.
Where does one obtain up to date PaX patches other than rolled into grsecurity? I looked and couldn't find it.
See my other post -- those patches were pulled back when the -stable tree was pulled, although you could previously get them separately, if you were daring.
Every post on lwn or mailing lists by "PaXTeam" is quite obviously spender with another handle.
i think you're 'quite obviously' wrong ;).
paxteam is basically pipacs and spender is spender. You can read more about pipacs in phrack#66 [0].