PoCoMo is an implementation of a vision in future-projected social interfaces. In this project we try to capture the playfulness of collaborative gaming and apply it to projected interfaces. The maturing of handheld micro-projector technology, in conjunction with advanced mobile environments, enable this novel type of interaction. Our system is made of a micro-projector mobile device with a specially designed case that turns it into a first-of-a-kind handheld mini-projector-camera system. Computer Vision algorithms support collaborative interaction between multiple users of the system. Through PoCoMo, we wish to explore the social nature of projected interfaces. To accommodate this we designed the projection to be of human cartoon-like characters that play out a personal interaction. Following their human controllers, they recognize each other, wave hello, shake hands, and exchange presents.