Best way to use an iphone 4s on straight talk?

I have metro pcs And i'm sick of it phones are terribly expensive and suck. I found this iphone i restored to factory settings already. Its an iphone 4s 32g ATNT. What is the best jail break for it? Does straight talk provide good coverage for it in northern california?

You have to get it unlocked. DON'T jailbreak it because if its on ios6 you will mess it up! Go on ebay, look up iPhone unlock and you can unlock it for $5. You provide the seller on eBay your IMEI and they will tell you when to restore your phone after that the phone can be used on any network! The straight talk coverage is pretty good I have and I live in San fransisco and its pretty fast! I used to have an lg esteem "4g" on metro but my unlocked iPhone is X3 faster!

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