How to change the look of app icons on iphone 4?

So I see a lot of girls with different home screen layouts on their iphones. On Pinterest and WeHeartIt there are examples of it such as: http://weheartit.com/entry/53384276/via/BFFxKATIE
Like the twitter icon has like a galaxy background, and the facebook or instagram icons have cheetah print. So I guess what I was wondering was how do you do that or get that? Is it a specific app or program needed? My phones already jailbroken. Would that pose a problem?

Travelling to america with my iphone i still want to be able to use 3g?

Hi
i'm going on holiday for 6 weeks to america soon a don't want to loose contact with my girlfriend
so 3g would be quite important to me also i use my phone as sat nav which uses 3g
does anybody know and cheap ways of doing it?
e.g.using a american sim or something like that any networks?

How to protect my iphone 5 case?

Well, I bought a iphone 5 case just a month back, but all the edges on the case are peeling off just like skin peel off, looking horrible now.So, I want to know how to protect iphone case to get it better.

Bought new iphone 4 with out contract now can't get service on it at all?

I got a new iphone with out a contract bc mine broke to the point of no use i put my sim card in it and loaded everything to it and it does not have service. What is going on and how can i get service now.

Added (1). Had it plunged up to laptop and went into iturnes it updated and everything i'm not understand y its not working maybe tell me how or what you mean by check to see if i used itunes bc i think i used it.

My iphone doesn't charge

I'm having problem with charging my iphone. At first charging is not supported message used to pop but somehow i still managed to charge my phone but now no matter where i plug the charger or even to my laptop throgh ub to charge it, it just won't charge, please help me, my iphone is dead now and not charging: c

How to cancel bid on ebay after winning?

Well my friends put $189.00 for a iphone 4 on ebay on my account, and i never wanted a iphone i already have one! And i heard that you could go to court or something for not paying? It doesn't have my real address or phone number on there, they put my next door neighbor? But it has my name, and i don't know they are stupid. They did it on my laptop and i'm scared. Can i get in trouble for this! How do i cancel it? Can i? I'm scared omg cause my cousin said they took her to court for not paying and it was only 3 dollars!

Added (1). No, i didn't put my paypal information on there. So ebay doesn't have it.

What's wrong with the iphone 5 case?

Two weeks ago, I bought a iphone 5 case in amazon. Overall it's very nice, combining a soft silicone core with a harder shell. It comes with the screen protector and cloth for wiping it clean.

However, I've been getting a lot of complaints from friends that the call quality is poor and that my voice sounds muffled/garbled. It seems strange that this would be the case given that the iPhone 5 has three microphones. One of the microphones is on the back near the camera, which is clearly exposed by the case, as is the second microphone near the top of the front of the phone. The third microphone, and probably the most important, is at the bottom of the phone near the lightning connector, and it's this microphone that is unfortunately partially obscured by the silicone inner case. I noticed the same muffled quality myself when trying to record a new voicemail greeting. Removing the case seems to help, which is a shame, because it's otherwise a very functional and aesthetically pleasing case.

So, I think it is the case's problem and does anyone can suggest some great sites or shops where I can buy great iphone5 case in lower price?