Andrew Cunningham brought up a very interesting point on Ars Technica today: if you’re in the market for a used iDevice (I imagine you can get a really good deal on an iPhone 5(s) these days…), make sure you don’t acquire one that you can’t unlock… By the same token, if you are planning to sell an iDevice of your own, make sure you don’t make it a pain-in-the-neck process for your buyer.
Here’s what you need to know: Avoid buying locked iPhones with Apple’s Activation Lock status page.
Caveat emptor (and seller)!