I just want to let you know that org-mode (org-20121112 from package.el) is working well with yasnippets 0.8.0 (beta)
(defun yas-org-very-safe-expand ()
(let ((yas-fallback-behavior 'return-nil))
(and (fboundp 'yas-expand) (yas-expand))))
(add-hook 'org-mode-hook
(lambda ()
(add-to-list 'org-tab-first-hook
'yas-org-very-safe-expand)
))
You may update the documentation with the above settings.
Thanks.