I currently have 3 lines of service with AT&T: 2 iPhones with Unlimited Data and one dumb phone that still has a year left on contract. I plan on opening 4 lines when I switch over to T-Mobile and plan on upgrading my iPhones when I switch. Since I'll be giving T-Mobile all my business, and I'm willing to pay the ETF on the dumb phone line, got any tips so I can get the best deal with them? For example, any chance I could get them to pay that ETF, or waive activation fees and the like? Thanks in advance for any tips, even if the tip is "stay with AT$T". For reference, I'll be using their service in the San Diego area, and sometimes in the Imperial Valley. Any opinions before I switch are welcome.