I've made some progress on an MPL canvas infrastructure built on top of the
contains() methods patch I submitted earlier (and now in svn).

I would like to post it to svn so that interested parties can play with it
and contribute to the development, but it is not yet ready to be put in the
trunk. I was browsing the svn tree looking for a sandbox to put it in, but
the closest I found is /matplotlib/branches. Any objections to me putting
it into /matplotlib/branches/canvas?

Thanks in advance,

  - Paul