Dr. Darren Edge, a researcher from Microsoft Research Asia, Beijing, China, had a lunch talk with idKAIST faculty on 19th Oct. The topic was `Expansive interaction design from view of activity-theory`. He came to Korea to join VSMM 2010 workshop in a collaboration with Prof. Youn-Kyung Lim. His current academic focus is on how mobile and ubiquitous technologies can enhance the activity of language learning.