The Banff Television Festival, New York Women in Film, Rotterdam Film Festival, Tel Aviv Film Festival, Milia, Comdex, E3, Digital Hollywood, The Screenwriting Expo, New Media Days Copenhagen, Writer's Retreat on Interactive Technology, The Pan European Copyright Conference. X|Media|Lab Sydney, and the American Chamber of Commerce in London, among others. 

For the grand opening of the Alexandria Library in Egypt he presented "Imagine Places: Distributed Telepresence Installations for Creating Immersive Historical Reconstructions" to the UNESCO "World Heritage in the Digital Age" conference. 

greg <at> storyslinger <dot> com
There was a time when interactive-movie was not a dirty word