Ever since Apple bought Prime Sense, roboticists have been asking what’s going to fill the gap. Robots need to know where they are and what’s around them. The Carmine, and the unveiled but undelivered Capri from Prime Sense, were the smallest, cheapest and most effective ways of mapping the environment available. Microsoft’s first Kinect was based on Prime Sense technology, and it enabled a raft of robotics developments, as did the Asus Xteon. But with the core Prime Sense technology off the market now, there are questions about what will fill the gap, and what will some crowd funded projects use to fulfill their campaigns.