I think a lot of people are missing the brilliance of this.
They're making it intentionally bad. For instance, I set a very cute picture of my niece as my google background...but it takes about an extra second to load the page now, so I removed it.
If anybody starts thinking about switching to bing, they're going to see the pictures, remember how much it sucked on google, and go back to the "good" google.
It's coke classic.