The only reason that you can do it on Android is because Android is such an insecure OS that someone who knows what they're doing can make it do just about anything. This OS was built to be secure, and that means the OS, too, not just the data that it manages. Not even all of the original Windows Phone 7 devices could be hacked to do what you're asking. So unless someone roots the phone and gets this to work, the answer is no, you won't be able to do it without paying for it. FWIW I believe Verizon is doing it right (even though they are required by agreement with the FCC). They're giving it free for the limited plans, and charging extra for the unlimited. I don't fault them for that at all. If it was free withunlimited, I'd have never given up my unlimited, and I'd ditch the cable at home. Why pay for that when I could go through my phone. But what they're doing makes sense, both of the common variety and of the business variety. You don't include tethering on the unlimited plans, and you avoid having the airwaves clogged up by the data hogs.