I have an iPhone 4 ( I know but I'm going Android soon) And I got an E-mail saying if I keep tethering they will change my plan. My questions are 1st are they only doing this to iPhone customers or are there Android users going through this to cause from what I read I've only seen iPhone users. 2nd if they are going after android users to Should I go to Verizon or Sprint and if so which phone is the one I should go with. I've had my eye on the Thunderbolt but I'd like some advice.