Mono 1.2.5 is out.

So, the necessary changes to support the DLR at all are in place.

Alas, it still has some limitations -- (bug 82650)

fails in the import statement with

Traceback (most recent call last):
  File __main__, line unknown, in Initialize
  File WinUI, line unknown, in Initialize
TypeError: Argument cannot be null.
Parameter name: type

which is not quite "at the first hurdle", but does make it useful to keep the WinForms import in a single file, so if I need to explicitly enumerate, I only have to do it once.

A pity that Python isn't quite as malleable as Ruby so far as stringname-to-symbol matching goes. The next best thing, this

doesn't fare any better. *sigh*