Introducing Project Loon: Balloon-powered Internet access
I took a screenshot of one of the videos: http://i.imgur.com/nppgVPG.jpgPerhaps Iridium refers to the Iridium satellite constellation (https://en.wikipedia.org/wiki/Iridium_satellite_constellatio...) (Edit: or maybe one of their products http://www.iridium.com/Products.aspx) and "SBD service" refers to something like this: http://www.iridium.com/products/IridiumSBD.aspx?section=supp... ?Edit 2: Perhaps they were tracking the balloon?