A new study by Coda Research Consultancy predicts that Wi-Fi enabled mobile handset penetration in the United States will grow at 25 percent compound average growth rates between 2009 and 2015.
Most of that growth will come as smartphone sales pick up, and the Wi-Fi capability will be crucial for mobile service providers attempting to maintain high quality service. Since much data demand is created by smartphone users, networks can offload quite a lot of traffic to Wi-Fi-connected fixed networks using the Wi-Fi capability.
It's a "win-win" situation. Users often will discover their devices perform faster on Wi-Fi, while mobile service providers can conserve capital investment. Some users will find Wi-Fi helps them manage their bandwidth caps. Also, Wi-Fi-equiped smartphones will make fixed connections at home more valuable as well.