org 7.01hになってから，(require 'org-babel-R)とか(require 'org-babel-init)がないようなきがする
今は(require 'ob-R)ぽいね．(Org-Babelの頭文字取ったのね．)
orgのtar.gz展開して，org/lisp以下にob-*.elがいっぱいあるから，そっちをみてね．
あ，org-babelもob.elになったのね
% ls org/lisp/ob* org/lisp/ob-C.el org/lisp/ob-R.el org/lisp/ob-asymptote.el org/lisp/ob-clojure.el org/lisp/ob-comint.el org/lisp/ob-css.el org/lisp/ob-ditaa.el org/lisp/ob-dot.el org/lisp/ob-emacs-lisp.el org/lisp/ob-eval.el org/lisp/ob-exp.el org/lisp/ob-gnuplot.el org/lisp/ob-haskell.el org/lisp/ob-keys.el org/lisp/ob-latex.el org/lisp/ob-lob.el org/lisp/ob-matlab.el org/lisp/ob-mscgen.el org/lisp/ob-ocaml.el org/lisp/ob-octave.el org/lisp/ob-perl.el org/lisp/ob-python.el org/lisp/ob-ref.el org/lisp/ob-ruby.el org/lisp/ob-sass.el org/lisp/ob-screen.el org/lisp/ob-sh.el org/lisp/ob-sql.el org/lisp/ob-sqlite.el org/lisp/ob-table.el org/lisp/ob-tangle.el org/lisp/ob.el
