Any cool features to the iPhone 5?

I just got my iPhone 5 and am LOVING it, are there any cool things it does that i might not know about? I have the light on the back blinking when i get a text which is pretty cool, but are there any other things?

Does 3g have anything to do with signal reception quality?

There's an option to disable cellular data however if this is done should I also disable 3g network?

If i disable 3g as well will the signal quality degrade?

Also I want to extend my iphone 3gs' battery for 2 days with moderate use… Is it really possible? I'm not into jailbreaking though.

How to unlock 3 network, iPhone 4S?

Hi, I have an iPhone 4S locked to "3" bought on eBay. I called up three if I could unlock this but they couldn't help me because I bought it on eBay. Then I went to the small shops on the high street and they said it'll cost £85! Does anyone know how I can get this unlock cheaper?

Why does my iphone save contacts that i deleted?

I've deleted contacts from my iphone but when i type their name when writing a new text, their contact information shows up. I don't want their contacts anymore and I want their numbers to be permanently deleted so I don't have their numbers. How can I do this?

Price of unlocked iPhone 5 + tax in US?

I'm outside the United states and planning to get an unlocked iPhone 5 directly from Apple, how much would it cost me to get it, i need to know about the price of a 16gb unlocked iphone + tax and all fees from Apple

I really need trusted information as i need to place order so soon

Should I keep my iPhone 4 or get the 5?

I have an iPhone 4 (Not 4s!) but my father is offering to get me the iPhone 5 but I don't know whether to keep my 4 or get the 5. Some people have said its rubbish and its a waste of money, yet other people have said it really good and if you have the money get it. I love Apple and I'm not switching my phone to any other type! Its either keep my 4 or get the 5… Also my mother is asking me whether to get me an iPhone 4 case or iPhone 5 case for Christmas and I don't know what to say… I don't know what to do, keep my 4 or get the 5. Which is genuinely the best phone?

Added (1). I said I'm NOT changing to any other type of phone, I'm sticking with Apple! Don't try and persuade me to change, its not happening. Its an iPhone or an iPhone.

Why does my home Wi-Fi not work?

I have my Wireless internet box hooked directly to my tv and a router connected to the box as well. If I get on my IPhone or IMac I can see and connect to my Wi-Fi with full signal strength. But when I use the Wi-Fi, it is so slow it is unusable.

How to unlock a stolen iPhone 4/5 with Sprint?

A friend of a friend of mine is selling both an iPhone 4 and an iPhone 5 (both on Sprint). Both phones might very well be stolen. I'm not too sure. It's really none of my business. But if the phones are already reported lost or stolen, is there any way I can unlock the phone and/or clean the IMEI? I too have Sprint.

New Iphone 4S, won't turn on?

I just got my new iPhone 4S in the mail, and when I went to turn it on, nothing happened. I plugged it in to the charger and have tried a couple times but still nothing. The screen doesn't even light up. What do I do? Should I just let it charge longer?