Hi all,
 
I just released an update of "The Whitespace Thing" for OCaml, my preprocessor that lets you use Python or Haskell-style indentation to avoid most multi-line parenthesization. The update adds support for some language features that I had previously overlooked.
 
http://people.csail.mit.edu/mikelin/ocaml+twt/
 
While the implementation is slightly lame, I'm using this every day on moderately large projects and I recommend it if you like this style.
 
Mike