Amsterdam, July 1-5. 1996: XVIII Internacional Biometrics Conference. Udina's abstract for his talk in the invited session on Dynamic graphics is available here in postscript format.
There was a Workshop on Design and Implementation of Data Analysis Systems, Heidelberg, March 23-26, 1995. Main contact: G. Sawitzki, Statlab Heidelberg. There our talk was about Interactive data transformation and parameter adjustment: a graphical interface tool . Here is the abstract. A draft is available right now. In the same directory there are some lisp-stat programs to work with it.