Initial and further education in the banking sector is becoming more and more important due to the fact that the regulations and the complexity in world of work and an international banking scene is increasing. In this article we provide the structures of and information on NetEnquiry, an innovative mobile learning environment in this field, designed and tested in different theory-practice-co-operations with all parts of the German universal banking system. It includes a competitive approach in which teams of learners have to solve complex scenarios. This article starts with the focus on mobile learning and the challenges for the banking sector. Taking this as a basis it provides an overview on the NetEnquiry tool, and its integration in vocational education and training. General evaluation and the usability results are presented at the end of the text to be taken as hints for future chances and challenges in this field. [For the full proceedings, see ED571335.]