This IDC Forecast Update analyzes the U.S. mobile consumer services market outlook for 2014-2018. It sets the forecast within the context of the overall mobile services market, including the business market. This Forecast Update discusses the key market trends impacting the consumer segment within the United States and examines the key market challenges and competitive dynamics to watch in 2014 and going forward. Forecasts for total and customer subscribers, revenue, and average revenue per user (ARPU) are also provided. Findings in this document are based on information gathered from primary and secondary sources during the past several months and IDC's analysts close examination of the U.S. carrier moves as a result from increased competition.