Vergers - please help!

A while ago I stumpled upon a website that made it possible to use a bunch of smart phones and tablets to collaboratively (in lack of a better word) show an image. Thought I had bookmarked it, but was apparently wrong. Have tried googling, but can't find it anywhere.

Then I noticed that The Verge uses this exact thing in one of their images :

Does anyone know the link to the site where I can do this? I think it was some kind of university project.