If you’re not familiar with the concept of visual search, its the process of searching from information using a picture. Google Goggles is the most prime example. Google Googles lets you snap a picture of something using your phone’s camera, and then Google searches for more information about whatever you took a picture of. If you photogrpahed the Mona Lisa, you’ll get information about the artist, when its was painted etc. If you snapped a photos of the Lincoln Memorial, you’ll get the full history.
This type of searching is likely to become more impactful as virtual reality becomes more practical, and “Heads Up Displays” like smart windsheilds and smart glasses become more prevalent.
Sawbuck is using a little more than just the photo to show you results. I’m sure they’re also using your GPS location to significantly narrow the search for the home you snapped. Its still amazing. And I, for one, welcome this very non-fumbling-with-my-keyboard method of home shopping.