Volker Roth left FXPAL last year to become a professor at Freie Universität Berlin. There he leads the Secure Identity Research Group, which takes a user centered approach to addressing security and privacy issues related to mobile devices, cloud computing, and the internet.
He and his group have gotten press recently due to a well-publicized celebration of the opening of their new building. There are some great photos of Volker at this opening on the Bundesdruckerei web site (Bundesdruckerei endowed the position Volker filled and provides other support for the group). On the same site is a picture of Volker hobnobbing with Horst Köhler, the president of Germany, and his wife! It is great to see Volker thriving.