Oh, you tech-savvy marketers. A quick poll of attendees at SIS finds the large majority have more than two devices with them; I'm guessing the typical device portfolio is a laptop, a smartphone, and an iPad. Although there could be more, as Colin Jeavons, president and CEO for Vertical Search Works, notes that "lots of people have more than one smartphone, and then before you know it you can have four or five or more devices." Alarming but true.