This paper reports on a pilot study developed to support collaborative working between the English and science pre-service teachers, working together to produce an e-book based around a field trip to the seashore. The participants used mobile technologies to extend their interactions outside the classroom, using iPads in authentic, fieldwork situations. In conclusion, this pilot study has prepared the ground for a larger, international collaboration on the use of mobile technology in initial teacher education and the authors invite those interested in such a study to contact them.