It seems like tethering applications pop up every few months. As soon as Apple gets wind of them they are gone. When they hit the news wire they are gone within hours, so if your still looking for a tethering app you better hurry up and grab this one.
QuasiDisk is a file manager and they recently updated their app which now allows tethering via a proxy. There is small small steps to set it up but a youtube video details it for you. So if you want to tether your iPhone to share your data connection but do not want to pay your carrier’s crazy monthly fee, grab QuasiDisk now for $1.99