If you already own an unlocked GSM phone or an unlocked iPhone that you’d rather use on T-Mobile’s network then today is your lucky day.
T-Mobile officially announced they are now providing micro-SIM cards for consumers to purchase. The micro-SIM cards are priced at $9.99 but are currently being offered online for free.
T-Mobile subscribers with unlocked iPhone 4 handsets will not be able to utilize T-Mobile’s 3G or 4G HSPA+ networks, but GSM and 2G EDGE services will still work without issue.
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Free O2 Sim Cards



