R

R Metadata Importer is a spotlight plugin for MacOSX.

The following function can be used to include the current R plot in the *ESS* buffer: 
(defun ess-insert-image ()
  (interactive)
  (ess-command "dev.off(dev.copy(device=png,filename=\"/tmp/ess-graph-output.png\"))\n")
  (beginning-of-line)
  (insert-image-file "/tmp/ess-graph-output.png")
  (forward-char)
  (newline)
  (end-of-line))