Each title leads to the abstract and article.
The
  impact of mathematical knowledge management on user interfaces is only begininning
  to show. In interactive proof construction, the system is able to suggest suitable
  theorems to apply to subgoals by harvesting online libraries; in computer algebra,
  folding/unfolding and automatic completion of terms helps the user with the
  input of complex expressions. Paradigms on how to use third-party software
  from within a preferred GUI are emerging 
and promise to innovate the notion
  of mathematical workspace.
This workshop wants to focus on novel aspects of UI brought forward by the
  developments in MKM. It would like to bring together researchers and practioneers
  working with contemporary mathematical user-interfaces, including, but not
  limited to
:
The workshop has invited Joris van der Hoeven to present about TeXMacs, an open-source WYSYWYG editor for mathematical publications.

AdvertizingFind the ASCII call for papers and the call for software demonstrations. You are welcome to forward it to communities with an interest, or simply to colleagues.
An A4 poster is available for you to print and display.
ReferencesThis page: 
http://www.activemath.org/~paul/MathUI/ 
Mathematical Knowledge Conference 2004: 
http://mizar.org/MKM2004