Flickr Web Uploadr Beta (2012): Demo Screencast
This video quickly demonstrates some of the features available in the new Flickr Web Uploader including adding files, editing metadata, rearranging, adding to a set, adding tags and rotating before uploading the files to the photostream.
HTML5 File APIs, CSS3 transitions and other effects are used here to deliver a powerful uploader and editor combined as a single experience.
Full-screen + HD is recommended.
Related announcement blog post: