Om Malik points to some studies that show that far more consumers are aware of voice over IP then Wi-Fi: An Ipsos-Insight study showed that 74 percent of consumers know about voice over IP while just 19 percent are aware of Wi-Fi. Still, just 6 percent of consumers use voice over IP. I'm surprised that so many more consumers know of voice over IP than Wi-Fi. While voice over IP has been talked about for many years, it has only recently gotten mainstream attention since some of the big mainstream telecom and cable players have started offering it. Wi-Fi, by contrast, has been grabbing headlines in the mainstream media for a few years now.