IPhone q: can you play music and silence all interruption alerts/calls?

I have an iPhone 4 and am going to be using it tonight as a dance party DJ, hooked up to speakers. It's just occurred to me that I don't want the music to be interrupted by text messages or calls. How can I do this? Does iPhone 4 have airplane mode, and would that do the trick? Is there a way just to silence the alert so I could still SEE texts, but not have it interrupt the music?

Problems with iphone 5 lock button?

So I bought an iPhone 5 when it came out at RadioShack, it is an unlocked iPhone. It hasn't been a year yet. If I took it to the apple store would they replace my phone?

When will my iPhone get here? - 2

I ordered an iPhone 4 from Verizon on Tuesday at around 7 and I'm wondering when it will arrive. It has been 4 days already and I'm wondering when it will arrive.

IPhone security app suggestions?

Lately i have been looking around for apps on my iPhone that help to keep my phone safe from any intruders, I'm looking for an app that can do the following

- *Takes a photos on the lock screen of anyone who didn't type in the correct password
- Shows where about my iPhone is on the map using Wi-Fi or Phone Network (Optional as I already have an app for this)

I need to app to be free as I can't use anyone's credit card to buy the app and also I would prefer if the app had a good layout and looked real, I would like the app to either start with the lock screen or have its own lock screen so when I turn my phone on or use the top button to unlock it then it will be locked while the app is running.

Thank you x

Added (1). I forgot to add this, when the app takes photos it sends them to my email that I provided

I found my stolen iPhone on Craigslist, what to do?

My phone was stolen the late hours of 29th/30th of August. I checked Craigslist for it last night and saw my phone, I know the marks my phone has. The seller had posted their number, I explained that I knew it was my phone and if they could return it no questions asked, they did not respond, so I asked a friend to text the number to see if its still available and will get a response, surely they did get response so now I definitely feel that it is my phone due to the fact he ignored my message. Now I don't know how to go about the situation. They have my phone off so I can't track it with find my iPhone.

I feel so bad for the people from the old days?

Like seriously how the heck did they survive?

They didn't have iPhones(can't go anywhere without mine), computers(grew up with them), and especially INTERNET. LIKE OMFG IF I WERE THEM I WOULD'VE KILLED MYSELF.