How much is an iphone 5 at Tmobile?

If you have Tmobile and currently own an iphone 5 how much does it cost? How much do you pay monthly for it because i don't know any prices. Because now Tmobile is contract free so anyone mind explaning to me?

Will updating (to 6.1.4) a jailbroken iPhone 5 on 6.1.2 brick it?

So I'm updating to the beta version of ios 7, but first I need to uninstall my Evasi0n jailbreak and update to 6.1.4. Will just pressing the update button in iTunes brick my iPhone, or will I just loose the jailbreak? If this will brick it, what is the best way to go about restoring my iPhone?

How to not get my cousins messages?

So I updated my iPhone to iOS 6 finally lol so I don't know what I did I just wanted to be over with but now I receive my cousins messanges we share the same apple account because I didn't want to get one so I tried Turing off ICloud but I still recive his text messages help please! Don't know what to do I use his apple I'd but don't know how to retore it to not get his messages

What will happen if I update my iPhone 5 on another computer?

The original computer that my iPhone was synced to in no longer working. If anybody can answer my question that would be really great. I just need to know whether or not the update will delete all my things on my iPhone: music, apps, photos, etc.

I need an answer As soon as possible.

Is upgrading to the iPhone 5 even worth it?

I have an iPhone 4 right now. My phone has been getting slower and slower lately and I feel compelled to upgrade, but it almost doesn't seem worth it to me. Aside from Siri (which I can live without), what improvements come with the iPhone 5?

Am I forced to update iPhone OS when it comes out?

Just got an iPhone for the first time ever, but whenever a new iOS update from Apple comes out, does it force me to update to the newest version? I've heard of iOS 7, don't really like its new design though