T-Mobile launched an interesting JUMP early upgrade program a few weeks back. Now both AT&T and Verizon have announced similar plans but with one main difference. both AT&T and Verizon plan on essentially charging you twice for the device subsidy while T-Mobile has the decency to only charge you once. This is just another case of BOHICA by the two largest carriers in the US.
Essentially T-Mobile is charging users a down payment and then breaking up the rest of the device cost over the year for their new much cheaper unsubsidized plans. Then they are offering a combined JUMP plan that includes insurance and the ability to switch phones for $10 a month. AT&T and Verizon on the other hand plan on both charging you for the phones in installments while they have not reduced the cost of their phone and data plans that already build in $10-$20 a month in device subsidies. In other words they are charging you twice and hoping you are stupid enough not to notice.