Macblogz reports on the future of iPhone tethering (using the iPhone as an access point to AT&T’s data network), pointing to the possibility of a $10 per month plan:
When MacBlogz first got word of some initial tethering details, the price of the entire plan seemed a little high, although not surprising. Specifically, the $30 price-point and 5GB data cap did not go over well with most people. These two points were what most people, as well as us have been concerned about the most.
Aviv is correct in pointing out the cost barrier at $30 monthly could in large part dissipate were the price to come in at $10 per month. If you are frequently mobile with your computer, the $10 monthly charge is a small price to pay for the convenience of never having to hunt for an available WiFi network.
Additionally, an attractively priced and configured tethering option might also serve as a driver for new sales; from brand new iPhone buyers as well as existing Generation 1 (Edge) owners.

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