woops, what i actually meant is that noweb doesnt work. I was thinking about
it, and it might be possible to
(a) automatically create overlays around begin_src blocks using
auto-overlays
(b) have a custom syntax parser that parses noweb syntax in those blocks.
 Sort of like what is done for syntax highlighting.

Im gradually converting my code to literate programming and am just on the
verge of splitting up my one clojure ns to  one-block org file into multiple
blocks per ns, so i will soon need the noweb functionality. When i get it
ill make sure to post and update!