UI Exercise Box's Web File Preview

Did a user interface exercise with Box's web file preview as the topic. (One my new year resolution was a blog post a week) Read the blog post here: http://www.justjimmy.ca/2013/01/06/ui-exercise-boxs-web-file-preview/

Just show me the pixels:
https://projects.invisionapp.com/console/4480353
(Navigate by left and right keyboard buttons)