How to find a missing iphone?

My bud lost his phone at school. It is on vibrate so we can't hear it. It is the very first iphone. It has not been updated since his dad got it and gave it to him. No iCloud no nothing. Is there any way we can track it or find it

I can't uninstall my iPhone 4S apps?

I've jail broke my iPhone 4S via evasi0n, and is now at iOS 6.1.2. Whenever I try to uninstall a cydia app, it's gone. But when I restart my iPhone, or it resprings it's back. How can I stop this?

Added (1). I don't understand that first answer. You jailbreak it once, not constantly. Please answer if you know what you're talking about:/ thanks =.=

How much would it cost for me to get an iPhone 4S?

I'm currently on my dad's plan under AT&T, I don't have an iPhone.

I want to switch to my mom's plan under Verizon. She has an iPhone 4 and she's been on her plan alone for about 8 months. She has unlimited data, texting and calling. How much would it be to add another line (I guess it would become a family plan?)? I would also want unlimited everything, would I have to pay for that? I how much is an iPhone 4S with a contract? Please help! I just need to know because I'm paying for all of this by myself

Why can I no longer drag playlists made in my itunes to my iphone?

I used to be able to plug my phone in then just drag my playlists into the phone. I've always kept the phone settings on manual so I can manage the music myself. Now, since I've updated to the newer version of iTunes, I can't drag the playlists over, or the individual songs within it. It's driving me insane

Where to get this otterbox defender?

So i want an otterbox defender iphone 5 with the color slate grey and blaze orange but it costs so much because its the customized colors on otterbox.com. Can you tell me where to get one cheaper I've checked ebay and amazon but they don't have it either?

If I choose reset all settings on my iPhone?

If I choose "reset all settings" on my iPhone after backing it up on iTunes, will I be able to use it for a little while and then if I sync it with iTunes it will go back to all the settings I had? Including Restrictions and Wi-Fi network preferences? And will I have to enter the apple id password anywhere to do this?