Professor Duraiswami will be bringing some interesting devices such as a spherical microphone array that he has built--and last I heard they will be commercializing. The one I saw at Ambisonics Symposium 2010 had 60 channels, 4 video cameras and a USB connectivity.

You are invited to read up on his work here, suffice to say he has literally written the book on the subject of spherical array microphones: http://www.umiacs.umd.edu/~ramani/