I just wanted to make this short post. Don't you think it's absolutely obnoxious that carriers dictate everything that has to do with sharing your data plan on a personal hotspot on your iPhones? Why is that they limit it to just certain plans (usually the most expensive ones) and even then you have to pay extra each month to unlock the hotspot feature? If I pay for 2GB a month, which for at&t or verizon will approximately set me back a ridiculous $40 a month, why are they so afraid that I choose when and where to use that data? I have paid for the data, why do they care if I use it on my phone or my iPad? I find this absolutely unacceptable, and it angers me that they are allowed to control this. Personal hotspot should be a feature of the phone, regardless of carrier intervention.