AT&T is sure making enemies this week. Firstly with it changing their smartphone data plans, but now they are saying that you cannot tether the iPhone to the iPad. Even though that iPhone OS 4.0 will allow iPhone to laptop tethering, AT&T are saying no to iPhone to iPad tethering. An AT&T spokesperson said that this is because "it won’t be possible to tether the iPhone to the iPad to share Internet access because the iPad's Bluetooth profile for tethering is not enabled."
So if you want mobile internet on your iPad, you will have to splash the cash for the iPad 3G. Lets just hope that these insane new ideas from AT&T are because of new carriers coming to the iPhone.