It is going to take a hell of a lot of new towers in rural areas to replace 2G with 3G.
Also as part of our ongoing efforts to improve our network performance and help address the need for additional spectrum capacity, we intend to redeploy spectrum currently used for basic 2G services to support more advanced mobile Internet services on our 3G and 4G networks. We will manage this process consistent with previous network upgrades and will transition customers on a market-by-market basis from our Global System for Mobile Communications (GSM) and Enhanced Data rates for GSM Evolution (EDGE) networks (referred to as 2G networks) to our more advanced 3G and 4G networks. We expect to fully discontinue service on our 2G networks by approximately January 1, 2017. Throughout this multi-year upgrade process, we will work proactively with our customers to manage the process of moving to 3G and 4G devices, which will help minimize customer churn. As of June 30, 2012, approximately 12 percent of our postpaid customers were using 2G handsets. We do not expect this transition to have a material impact on our operating results, but will continue to evaluate the financial impact of transitioning customers from 2G devices to 3G or 4G devices.