The low-cost Sprint MVNO FreedomPop just launched its freemium phone service last month, but now it's expanding phone selection by letting users bring their own handsets. However, that doesn't mean you can take just any Sprint device over the FreedomPop and kiss your bill goodbye – there are some restrictions.
Pre-paid smartphone users were in an uproar a few months ago when Straight Talk stopped selling AT&T SIM cards to new customers. At the time, all we were able to ascertain was that the cards were sold out online, but a few retailers like Walmart still had some in stock. Well, they're back – in a limited sort of way.
When you go through the sign up process, the website will only show you T-Mobile or AT&T cards for a given ZIP code.