Hi everyone,
To make it easy to upload your images to Commons we created a campaign,
see
https://commons.wikimedia.org/wiki/Special:UploadWizard?campaign=Wikimania2…
It only accepts a default license and automagically adds a category so
that the images end up in
https://commons.wikimedia.org/wiki/Category:Wikimania_2013
Happy uploading!
Maarten
Ps. Mobile users can of course use the Commons mobile app to upload from
their phones directly at
https://commons.wikimedia.org/wiki/Commons:Mobile_app/Download