Numerous studies have proposed and implemented various innovative designs of collaborative mobile learning practices, and several pedagogical affordances of mobile technologies in different subject domains have also been suggested. This study follows a proposed innovative design notion in prior study and elaborates on its design challenges and learning effects. The proposed design notion, interwoven learning interactions, means that learners' social interactions are synthesized with the subject content to represent the instructional information. Learning is constructed on the realms of both physical and social experiences linked with the abstract learning content. This design notion puts learners' social interaction in a more active role during their collaborative learning. The proposed notion is at its developmental stage. This study elaborates on the notion and hopes to provide clearer picture and inspire more discussions.