If you call T-Mobile on the phone, 877-453-1304, they'll sell you a SIM card for $2.99 + tax with free shipping. If you're thinking of moving to T-Mo without a contract, this seems to be a real good deal. They have their SIM cards available from their website for free, but it's only if you get a 2-yr contract. The $2.99 SIM card from the phone order doesn't require a contract. Unless I misheard the T-Mo rep at my local store, the stores charge about $25 for the SIM card.