The 3M Portable Wireless Projector with Roku Streaming Stick is $170

You see that dumb old wall over there? It could be displaying your favorite media right now with this 3M Portable Wireless Projector with Roku Streaming Stick. Groupon's got it for $169.99, a price-point we've only seen once before. Reviews at Amazon are stellar, so expect it to do as advertised and more.