I've seen two recent calls for what looked to be good upcoming events studying innovation in the developing world with an explicit interest in the use of microdata.  

  • Third Conference on Micro Evidence on Innovation in Developing Economies
    Rio de Janeiro
    May 10-12, 2009
    Institute for Applied Economic Research, Brasilia, Brazil
    UNU-MERIT, United Nations University
    http://www.merit.unu.edu/MEIDE/
  • Workshop on Firm-Level Data Analysis in Transition and Developing Economies
    April 23-24, 2009
    Edinburgh, Scotland
    http://web.ceu.hu/labor/cost/

And while not a call for papers, this summer opportunity at the Barcelona School of Economics looks very much to have a similar focus and appeal.