This study explores young children's use of digital tablets in Swedish preschool environments, with special interest in how the use of digital tablets may affect children's agency. A multimodal, design theoretical approach was used, combined with sociology of childhood, to highlight the dynamics between children's agency and the affordances provided by the digital tablets. Two video ethnographic substudies were conducted within two separate preschool settings, including preschools where children use digital tablets to communicate in a minority language. In order to take into account as many modes of communication as possible, video recordings of children's use of the digital tablets was set side-by-side with screen recordings of the digital tablets. Major findings include how children's agency in digital tablet activities is intertwined with the different affordances, as emerging in the children's interaction with one another and the digital tablet. It was found that when affordances were built on visual, auditive and corporeal modes of communication, children's agency was enabled. Such affordances are in this study argued to be more, for the children, apt modes of communication for children to exert agency. Furthermore, it is argued that when children are given the possibility to communicate in their minority language, using for example Skype, this is a form of children's agency. The didactical implications and the societal potentials for children's use of digital tablets in preschools are discussed in relation to the creative skills individuals may need in an unknown future.