Really? Really? "We do not allow tethering"? Are you kidding me? First of all why would you "not allow " your customers to use their bought and paid for phone in a manner they choose and would be beneficial to them? First that is counter productive to good business and 2nd it is like a challenge... "don't allow" is like a a red cape to a bull, a red flag to a gamer and to all red blooded Americans it is a call to arms to insure that everyone and everything is free to use or as Hale V Henkel (supreme court case) states "All corporations are creations of the States and it is presumed that all creations of the State are to benefit the people".
So let me be the first to suggest that you get with the program and not only "allow" tethering but provide the software the cable and make it easy to use so that you can stay ahead of others that are already doing it such as your competition, or you will loose thousands and thousands of customers and bitches like me will go out of our way to tap into every chat room, every posts, every tweet etc, and relentlessly with the thousands of other connections around he globe, tell people to stay away fro Net 10 because they do not have their clients best interest in mind. And we will show you where the "can" in "American" comes from. Not to mention that we will tap into the vast array of those that know how to by pass your blocks and find a way to do what we want with our bought and paid for equipment which we got to serve us not to "not allow".
So guess what? Now you can talk to your bosses and suggest they release the blocking and provide it as a service for your customers or start looking for another business to work for. Remember "Cingular"? First I got them to see it my way and turn a disadvantage into an advantage with roll over minutes (I was going to sue them every month for the minutes I bought ahead of time but suggested they turn it into an advantage and advertise as a promotion) thus roll over minutes were born. Unfortunately years later they failed to listen when I told them not to get into bed with AT&T... they did not listen... and you know the rest of the story.
So it is your choice now... What's it going to be, provide for your customers and get lots of new business or deny your customers what they want and need and dye an appropriate death by loss of customers who will find another company tat will provide them with what they want and need?