Will give it a test later in the week and let you know.

Also you can add this hook to make it act like the fly-spell mode in auctex (if familiar with that) which skips most tex based commands (trips up though if you have only one $ because assumes another $ sign later so won't check spelling in that block. I would just do \$ if you need a single dollar sign. This is the only really limitation I have found to adding this that I have noticed thus far.

(add-hook 'org-mode-hook (lambda () (setq ispell-parser 'tex)))

I would prefer instead of having this an all org-mode-hook to initiate only in documents that have a #+LATEX in the document once opened to set the parcer but wasn't sure how to do this.

#+BEGIN_equation

body as well

#+END_equation

#+begin_align

body as well

#+end_align

Cheers,
jeff