I've looked around and people say I need a non att sim card to unlock my iphone.
If thats the case will this one work? http://www.amazon.com/gp/product/B004GV13VY/ref=ox_sc_act_title_1?ie=UTF8&psc=1&smid=A1KB67E3B1B7VI
I wouldn't spend $10 just to test out the unlock.
Buy a T Mobile or simple Mobile nanosim on ebay for $1 instead.
http://www.ebay.com/sch/i.html?_from=R40&_sacat=0&_sop=15&_nkw=tmobile+nano+sim&rt=nc&LH_BIN=1
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