I wish they would just enable tethering for occasional use by default. I'm not going to tether my phone everyday, just once in a blue moon when I'm out of town and don't have good WiFi. Like a 500mb/mo allowance for tethering that accumulated when it was unused would plenty serve my needs. If I can't tether, I'm just going to end up trying to do the same thing on my phone I was going to do on the laptop anyway, perhaps less data efficiently considering I might have to download apps or find workarounds to do it.