Frankly, I've got the worst of both worlds -- I bought my Android phone upfront, and I still pay extra for the data plan. In theory I do this so I can change m

Frankly, I've got the worst of both worlds -- I bought my Android phone upfront, and I still pay extra for the data plan. In theory I do this so I can change my plan and/or switch providers willy-nilly, but I never do because I don't want to lose a phone number that's not really "mine" to begin with.