Smartphone Success Caused Wireless Network Congestion

With the success of smartphones like iPhone, DroidMotorola DROID Milestone Unlocked GSM Smartphone
 BlackberryBlackberry Onyx 9700 Bold Smartphone Unlocked with 3MP Camera, Bluetooth, Wi-Fi, E-mail--International Version with No Warranty (Black) etc there is a rise in data over voice service escalating the volume of data over wireless network. There is a growing risk that data traffic will strain the capacity of wireless networks, and that networks will not be able to remain profitable while supporting emerging services that generate low revenue. Thus carriers have to update network to enhance its service and retain customers.