Xbox live from tethered iphone

Just read an article about tethering the iPhone to play on xbox love. I was pretty skeptical about how it would work on live. However I tethered, bridged connections, and signed in an damn, it works. No internet where I live that's why I did this. It took a while todownload the live updates but once i got into a game it never lagged. Awesome if you were in my situation