In the current state, uploading any image will break CloudFiles.

This is probably due to PIL reading the "name" attribute of the
passed file object. AFAIK CloudFiles does not have one.

`http://mediagoblin.com/u/aleksej/m/felichan-superjaron/ <http://mediagoblin.com/u/aleksej/m/felichan-superjaron/>`_

The text in the file is "Feli?an superjaron", but it appears as
"Feliĉan superjaron!", both on its page and in the thumbnail
(though the thumbnail is too small to see if "‰" is rendered).

The HTML5 video tag has a few options on how a video is loaded on
page load. Currently, MediaGoblin uses ``preload="auto"`` which
causes the whole video to be downloaded on the end users side, even
if they don't actually play the video.
The ``preload="metadata"`` option will only load the metadata and
first frame of the video on page load. This can help site
navigation quite a bit during low-bandwidth times (such as through
3G on phone's wifi hotspot).
I have edited the
``mediagoblin/templates/mediagoblin/media_displays/video.html``
file on my MG instance to have the 'metadata' option. A couple of
examples: `http://url.jpope.org/9a <http://url.jpope.org/9a>`_ and
`http://url.jpope.org/99 <http://url.jpope.org/99>`_