This is by no means a "rival to Bing". It's a page with Creative Commons pictures on the background, with a search page driven by Google. I'm not entirely sure how this could possibly be construed as a rival to Bing, unless you see their site's background as a bigger feature than, you know, the search engine.
Well you could argue that Yahoo search is just a news website with a search page driven by Bing.
I see Bing's background as a differentiator to Google, which is why I'm trying to combine the two and promote free media.
I'd say that that's a fairly apt description of Yahoo, actually. If you were to drop the linkbait title and go with the title of the blog post itself, it'd be considerably more accurate. SearchBandit isn't competing against Bing any more so than Bing is competing with Flickr by showing images on its background. All in all, it's a pretty silly claim, which won't do anything for your goal of free media promotion.