We argue that there is an urgent need for spoken dialogue translation systems in the medical domain. In this work we describe how an existing system of this kind, originally intended for a desktop PC, was adapted to run in a mobile environment. The different characteristics of the target device necessitate new interaction approaches and interface design. The new configuration uses two client applications running on two different devices, one for the doctor and one for the patient, together with a server; the components are connected over a wireless network. The system supports context-dependent translation in both directions. We give a general overview of the system, and discuss some of the relevant design issues pertaining to deployment of speech-enabled systems on mobile devices.