JuxtaPinch: exploring multi-device interaction in collocated photo sharing

Mobile HCI research has started to investigate multi-device interaction as we often have more devices at our immediate disposal. We present an application called JuxtaPinch that allows users to share photos while being collocated using several different devices, i.e. mobile phones and tablets, at the same time. JuxtaPinch use pinching to connect devices and it enables flexible physical positioning of devices and supports partial viewing of photos. Our evaluation showed that JuxtaPinch enabled participants to experience their own familiar photos in new ways known as defamiliarization. It further enabled participants to engage jointly in playful interaction with the photos and with each other. However, we also found that multiple device collocated photo sharing challenges aspects of synchronization and coordination.