As much as I like Sprint (not sarcasm), I am looking to switch to T-Mobile soon. My question has to do with ETF of a smartphone versus a basic phone. Sprint's ETF pricing structure is here:http://support.sprint.com/support/a...ase-sp061027-20110823-171256/?ECID=vanity:etf As I have an iPhone on my line, my ETF is quite high, $260 at the moment. If I had a basic phone on my line, my ETF would be half that, $130. My question is, as I have several old Sprint basic phones laying around, if I switch my line to a basic phone before cancelling, will they charge me the basic phone ETF rate? Has anyone tried this before? Does anyone have experience going through the ETF process with Sprint? Also, if anyone has cancelled Sprint recently, how is their retention department these days? I remember years back they would bend over backwards, offer crazy discounts, and do pretty much anything to get you to stay. Thanks for the help.