Google Blogoscoped has a screenshot running of a new addition to Google Universal search which serves horizontal videos in the Google search results, freeing up more room for other results and taking full advantage of Google SERP white space.
The screenshot appears to be a Google Onebox serving specific media for different search queries, like videos for “Barack” or Google Shopping results for product information.
I am not able to view the changes myself, as Google seems to be testing to a small group before rolling it out, but here is a screenshot from Blogoscoped’s coverage : New Middle-of-page Google Onebox Type?