v2 of the screencapture for org on the mac

; Mac OSX version.  Tested on 10.7.  Will not work on other OSes.
(defun my-org-screenshot ()
  "Take a screenshot into a time stamped unique-named file in the
same directory as the org-buffer and insert a link to this file."
  (interactive)
  ; FIX: take a file name rather than hour min sec
  (setq filename (format-time-string "%Y/%m%d-%H%M%S.png"))
  (call-process "sleep" nil nil nil "5")
  (call-process "screencapture" nil nil nil "-T" "15" "-i" filename)
  (insert (concat "[[" filename "]]\n\n"))
  ;(org-display-inline-images)
)