Can't download any app for iphone 4?

I'm trying to download a free app from the app store and it gives me "unable to download application" error. I've tried deleting it then trying to download it again but it gives me the same error message. I've also reset my network settings! Any help with this would be greatly appreciated! I'm really getting frustrated at this point!

How to block your number when texting someone on iPhone 4?

Someone texted my friend and was trying to act like me but I don't know who it was. They were using a pinger number so it wouldn't let me call them. I have an iPhone 4 and I want to text them without them knowing my number. How can I block it if I text them?

My iPhone erased EVERYTHING?

My i Phone 3gs erased EVERYTHING including the app store and music even settings! NO Icons are there! If I search for them nothing comes up… I need help! Please.

My iPhone isn't working right?

Today my iPhone froze when I was turning it on (it froze on the apple logo screen) and I got it working again after pressing the on/off button and the homescreen button at the same time. But now when turn it on it says "Waiting for activation. This may take a while." and none of my applications are opening. Even when I get Facebook notifications and I click on "View", it still won't open. How can I fix this, and how can I get my applications working again? I have tried turning it off and on and I have never Jailbroken or updated my phone from its factory setting. Its an 8g 3rd generation iPhone.

My iPhone 4 has run out of warranty, can I get a new replacement?

I have an iPhone 4, i'm on pay as you go and I do not have insurance. I also have no warranty as I got my iphone as soon as it came out (so it's definetely more than 1 year old) I have noticed my lock button sometimes stops working and It's really annoying. I wondered if I could take my phone to an apple store and tell them about my problems and if they could get me a brand new replacement, I'm not sure if they would give me a new one though as I have no insurance or warranty. Does this matter?

Will there be a huge difference between the Iphone 4s and Iphone 5?

I'm just wondering what you guys think… Because i don't think there will be a massive one. I currently have an iphone 4s and think well what else can they really do apart from make the screen wider and overall a thinner model. It's already quick enough and the camera is awesome. Also the same ios is going to be available for the iphone 4s and 5 so they'll just the same almost! I know they may have some new feature or two but really have they reached the max yet?

What are the smaller otterboxes called?

My mom has a big one that is really chunky. My friend has a small one thats pretty much the same size as her phone. The smaller one is on an iphone 4 and the big one is a 4s, but i don't think it really makes a difference. Right? Anyways, I also heard there was like a defender otter box and a commuter otterbox? Basically, I want to buy the small one my friend had.

If I turn off the network on an IPhone will i still get texts or calls?

Okay so I'm going to the Caribbean in a few weeks and I was wondering about my iPhone. I don't have an international data plan, so I was planning on turning off my network. It says online that you can iMessage people through Wi-Fi. But if i turn it off will i get the messages i missed after I turn it back on? And will i charged for my iMessages?