Remember the Twilight Episode where everyone has eyes in back of their head? No? O.K., never mind. Just know that there is one. And it's freaky. And if you bike a lot, you probably wish you had a pair of eyes in the back of your head. But of course, for obvious reasons, you don't. Until today. Here. on GoBlog. If Cerevellum has anything to say about it, you'll be looking behind you, by looking in front of you watching a screen on your handlebars. The screen shows you what's behind you using a lens that replaces your handlebar plug or is fitted to your seat post. Not available yet. Except to pay about $200. Via Dirt Rag.