I have a wifi only iPad 2. I also have an iPhone 4. I am aware that I can set up a private network using 3G from my phone. I went to my local Vodafone shop and asked how to set this up. They said that I needed to download an app from the app store for like $30 or something. No charge from Vodafone (au) themselves though. I have looked through the app store, searching for 'wifi' which I was told by the reps. Is this the case? If so what app is it? I know the option is in settings, however I don't want to turn it on if there is something else I have to do first. Has anyone got any experience with this?