I think its stupid in some cases, like myself,I jump on my home wifi and tether to my non wifi capable( ancient) laptop. I'm already paying for home internet, why should I pay again for theirs? now if I were using my 3G data,I could understand that. They need to seperate wifi and 3g tether somehow.a simple block of the native tether option when not on wifi would do fine, and I could live with that. I understand paying more to tether 3g because you'll likely be using considerably more data. Though, just to gauge usage for one month I tethered 3g and barely cracked 1gb and that's using the phone outside tether. I'm sure others would be much higher but I really just use the laptop for business.
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