iPhone officially, doesn’t support Internet Tethering on all models. But here is a process that allows you to use your iPhone as a Wireless modem to share its Internet connection with a computer via WiFi, USB cable or Bluetooth interface on iPhone 2G, iPhone 3G , iPhone 3GS on anyFirmware: 3.0 or Firmware 3.1.2 The app that we are going to use is called MyWi Main Features of MyWi v3.1.8: Create WiFi Hotspot to connect mutiple laptops or mobile devices to share your iPhone’’s intern