News release: “A new study from The Nielsen Company says that more than 20 million U.S. telephone households (17 percent) are wireless substitutors — homes without landlines that rely solely on a mobile phone for their home telecommunications.”

• Call My Cell: Wireless Substitution in the United States, September 2008
• News release: “JupiterResearch..has found that wireless subscriber growth is slowing due to market saturation, with US carriers adding only 26 million new subscribers in the next five years to reach 266 million in 2013. Adoption by teens and young adults will become nearly ubiquitous as the majority of the demographic already have cell phones, and 31 percent of parents with children ages 10 to 12 reported that their children also have cell phones…cell phones are evolving from a one-to-one communication platform into a one-to-many platform as online users migrate toward social networks as a center of communication. Although this transition is just beginning, its impact on the mobile data market is significant.”