Portable personal devices (PDAs or mobile phones) are indeed widely used.They provide the mobile worker or the customer with portable computing and wireless access to Telecom networks. It is then possible to access many services (phone card reloading, remote purchase or telephone banking). The conventional means of identification (passwords, secret codes and PINs) can easily be compromised, shared, observed, stolen or forgotten. Determining the identities of users can be achieved through the use of biometrics.Since more portable devices are equipped with a microphone and a video camera,MOBIO will focus on multiple aspects of biometric authentication based on face and voice authentication.MOBIO will thus address several innovative aspects relative to bi-modal authentication systems in the framework of mobile devices:1. Researching joint bi-modal authentication algorithms to take advantage of temporal correlations between modalities,2. Investigating model adaptation techniques to reduce the degradation of biometric systems over time,3. Analysing the scalability of the proposed solutions,4. Providing common evaluation tools and baseline results.The project will also address the development of demonstration systems, running either entirely on a mobile phone or partially on a server if resources needed to reach the required performance is too high.