MyWi is an application that allows you to share your iPhone 3G or iPhone 3G S’ GRPS/EDGE/3G connection via Wi-Fi! – MyWi has updated – that allows users to tether on fw 3.1 also – 3.1.2! Enter Cydia, and download the MyWi application. Enable USB/Bluetooth tethering under settings. MyWi is a trial version of the application, for $10 you get unlimited tethering?