This year I am supervising the theses of Neal Robben (together with Geert Vanderhulst) and Tijl Lathouwers (together with Carl Bruninx).
Both theses are related to UIML and Uiml.net. Neal will be extending Uiml.net to support distributed user interfaces, while Tijl will be looking into adding metadata to user interfaces and using this metadata for adaptation purposes (e.g. personalization or device adaptation).
More information can be found on Neal’s blog and Tijl’s blog.