Hello, Thanks in advance for helping a noob out. I am intrigued by the sim free models more recently released as It supposedly is white listed to the 4 big companies here in the states and I want to try out sprint but byod back to verizon or cricket if it doesn't pan out. Q1. How does sprint exactly activate this model? Do they have a SIM card right in the store? And this doesn't "lock" my paid for device to them correct? Would the phone I purchase from apple qualify for their 50 dollar per month unlimited iphone promotion? The store rep was completely a deer in headlights when I ran all this passed him and he told me ask apple.... Q2. Upon purchase can I take my nano sim from my verizon iPhone 5s and use it immediately while I put my 5s up for sale? Thanks much macrumors community.