It would be very useful to have original odp files of the presentations at Wikimania, instead of having to ask them to the author (see logs): that will impossible in the future, they should be there forever.
I suppose that a more restricted and smaller wiki like wikimania could have such a configuration (as Internal does, for example).
Hope this suggestion make sense.

Version: unspecified
Severity: enhancement
URL: http://wikimania2009.wikimedia.org/wiki/Special:Log/upload