I want to tether my iPad and my laptop so that my laptop can run off of my iPad's 3G connection. (NOT so that my iPad can run off of my laptop connection.) I've seen threads about people who want to do it the other way around, to use a mobile laptop connection in order to avoid paying fees to ATT. I'm the opposite. Paying for iPad 3G and home wifi is making my home internet connection redundant and an unnecessary expense. I would rather just the home computer into the iPad and run off of the iPad connection. Is there a hack? Trick? Software of some kind?