From Hipmunk, OnSwipe, MC10, Appature, Mimecast, and Northrop Grumman to Headline “6×6″ Big Tech Ideas Conference Dec. 1:

6x6: Six Cities, Six Big Tech Ideas (Boston, Dec. 1, 2011)
6×6: Six Cities, Six Big Tech Ideas (Boston, Dec. 1, 2011)

Xconomy Forum: 6×6: Six Cities, Six Big Tech Ideas