This article describes the mobile learning project, where mobile device is used for educational activities. Article defines the word mobility from the educational point of view. The main perspective in this article is in teacher training. We present experiences how mobile technology was used in teacher training, how trainees and supervising teachers felt the use of mobile technology. The pilot was carried out on Department of Home Economics and Craft Science in University of Helsinki. The idea of pilot was that supervising teacher and trainee students discuss and share their ideas about teaching methods etc. through mobile device and also use SMS-messaging and digital pictures as a part of supervising process. The use of digital pictures which were delivered via mobile device came up to be surprisingly successful. The goal of these innovative pilot projects is to create flexible teaching solutions, which will enable the accessing of information with all kinds of devices, and to support learning in a variety of situations.