Mobile phone tethering delivers mobile Internet access for rich content and multimedia to locally connected devices and vehicles via 3G and 4G cellular data networks. Tethering can provide mobility, flexibility, speed and convenience for subscribers and service providers. We predict mobile hotspot handset sales to surge 105% in 2012. It is a high-growth category. How big and important is the mobile handset tethering market? Will Bluetooth, USB or some other technology win? More analysis can be downloaded by clients of our Wireless Device Strategies (WDS) service here.