The EMBASSI project aims at developing Electronical Multi-Medial Operating and Service Assistance for applications of electronic devices in private, automotive and public environments. — In order to assist ”slow typers“ in typing free texts and to speed up text entries in public terminal systems, a text prediction system is being developed that predicts text while the user is slowly writing. The system takes into account application dependent vocabulary, user dependent preferences in writing, and the user specific features of impairment- dependent Personal Mobile Control Devices (EMMA) with individual user interface layouts.