My iPhone 4 has the iPhone 4s design?

I bought an iPhone 4 before school started in September, and I was fine, because it's a smartphone and I'm okay with that. But recently, my cousins who are very good with technology noticed that my iPhone 4 had an iPhone 4s design, but with a iPhone 4 model number. Should I call them up to just see what's wrong?

How much is a used iPhone 5 worth?

My friend is offering to sell me a used iPhone 5 (black 16gb). He has jail broken and unjail broken it before. It has 1 crack on the back top glass area, not too bad and doesn't affect the camera. It will come with the box, cable, and charger. He s charging 50$ at the moment and I'm the only buyer. He isn't anxious to keep it or sell it.

Added (1). i need a real answer other that the first three

Which prepaid carrier its the best for iphone 5s?

So i want to buy a iphone 5s on prepaid, and i wanted to see which prepaid carrier will suit me, i have a iphone 4s on boost and the service kind of sucks so i want to try a different carrier, i heard straight talk its good too, what do you think?

Do the restrictions get taken off?

Basically I have restrictions on my phone but I don't know the password. If I reset my phone (hold the power & home button till iTunes symbol comes on) and set it up as a new iphone will the restrictions still be there?

What can i buy after boot camp?

I'm not joining the military just for the money so don't get to that.

Once I come from boot camp I will not have a phone because I want to get a new one ( Iphone 5 hopefully) as well as some shoes such as Jordan's and Nikes( I'm a collector sorta and will start from fresh when I go into the military). What will I be able to get once I get out of boot camp and go to AIT or A school.

Can my iphone 4 get a virus? Read below please?

When i first got my phone it was really fast. I've had it for about a year now. But all the sudden its really slow! The apps take forever to open. When you type the letters come up slowly. Recently my phone turned off out of no where and did not turn on until after 30 mins of trying to turn it on. I've had the same apps on my phone since i got it.

Can I upgrade even though my contract isn't over yet?

My phone is so broken, but I don't want to get a replacement because my contract ends in 21 days. It doesn't seem like a long time, but my phone has been difficult to use since September, and has gotten especially worse in the last month or so.

I have Verizon and my phone is a Samsung Stratosphere. I want to get an iPhone 5c. If I can't yet it's not a big deal considering I'm only waiting another 21 days, but it's becoming almost unbearable.

Any information is helpful.