How to buy an unlocked iPhone 5 in the US?

I'll be visiting the US In a bit and I need to buy an unlocked iPhone 5 while I'm there.
Whether its Tmobile, Verizon, or even the Apple store… Can I buy an unlocked iPhone 5? For use on my asian phone carrier

i heard if i go to verizon, the iPhone is already unlocked out of the box… Does that mean i simple go there and buy one full price, or do I have to go there and get a plan then pay an early termination fee?

ps. I'm only in the US For around 3 weeks doing this, what are my viable options?

Can i use my sim card from a samsung phone in the iphone 3gs?

I have been told that you can't use a sim card from another make in the iphone 3gs that it has to be cut to fit it is this right i have a samsung gts3650 and don't want to have to put all my details etc and have to have a new number if i buy my sister in laws iphone 3gs

For some reason I can't seem to check my mail on the iphone?

Can someone please explain this to me? I have an iphone 4, and I recently updated my iphone a week or two ago, and everything seemed okay until now. I can't seem to load up new e-mails.

Also, can someone please tell me how to set up a voicemail box? I can't seem to do so.

Where can I buy app development software?

I want to develop a cross platform app for iphone, ipad and android. I can see there are free packages that I can use to either develop individual apps for each platform or there are some packages that offer a cross platform development option. Could someone help me with a link to where I can look at software you can buy to do this? I need a site that provides genuine reviews of these software packages before I can choose. I'm in the UK.

IPhone 'Water Damaged' without triggering indicators?

So a few weeks ago my 3 month old IPhone 4S stopped getting any signal, for no reason at all. I could connect it to Wi-Fi at home and everything else was fine but I just couldn't connect to the network to make calls, text, use data etc. I swapped SIM cards with another phone and my SIM connected fine on the other phone, so it was definitely the phone at fault.

I took it in to a local private specialist and within 5 minutes he said the cellular antenna was probably busted and needed replacing and he could do it for $45, however he showed me the trigger tabs were white and that there was no water damage and it much just be faulty, which he said covered the warranty.

So I went into my Telecom store (where I originally bought the phone) and after four days back and forward of send me home to try a new sim, updating, backing up etc, nothing worked… So they finally sent it away to get fixed for me. Fourteen days later they have rung me up to say the phone is water damaged and they can return it fixed for $314 or unfixed for $84.

So my question is, how could they say it is water damage when it clearly isn't? If the phone was water damaged wouldn't the triggers be red? I admit I have used it in the bathroom and under an umbrella in the rain, but I don't live in a humid environment or anything like that.

I need to make up a story for broken iPhone 5 (Drilled Hole)?

In order for me to get a replacement according to my warranty I have to provide them with a legitimate excuse as to why and how I broke my iPhone 5. They cover accidental drops, spills, cracks, and broken iPhone's, however I drilled a hole into my iPhone 5 so it looks really strange and I don't know what to tell them. The reason I did this was for a YouTube Video. What can I say that would be a good story? I thought saying something like I work at a factory plant and I was checking an email when it fell into a grinder and it made a hole in it.

Seriously though I'm not trolling, I need to know! Please!

How to play music from iPhone to car?

I wanted to know if there was a way that I could play the music on my iPhone in my car. My car doesn't have a USB port or anything special like that. All I have is a CD player. I was hoping there might be a device that allows music to be played in my car. Any help is appreciated.