Which one should I buy, iPhone 4s or iPhone 5?

Iphone is very very expensive in my country and for me. Thats why I need to set up my mind before choosing it recklessly.
I like the design of iPhone 4S better, but I'm afraid that it will get outdated fast compared to iPhone 5.

Do you think so? Will 4S get outdated in near time? And which one should I get in your opinion?

Will my monthly phone bill be more expensive if I buy the iphone 5s?

I have the iphone 5 right now with AT&T, I'm planning in buying the iphone 5s when it comes out on Friday at the apple store. I'm not sure if buying this phone will raise my monthly phone bill or if there's any other payments I'll have to make besides the $200 to buy the phone

Ios 6.1.4 jailbreak release date please?

Every website keeps telling about people who succeeded Jailbreaking their iPhones but none of them Says how if anyone knows the release date of the jailbreak of the iOS 6.1.4 please let me know.

Note II won't charge turned on but charges turned off?

I've had my Note 2 since April, but more recently we sent it to get the broken screen fixed. It used to charge fine, regardless of being on or off. Now, it will only charge turned off. When it is turned on, it will recognize the charger but the battery goes down, not up. We've tried using a Chinese cord into my computer, the original charger and cord supplied by Samsung and using the original Samsung cord in my iPhone charger. Any ideas on why it is being like this and how we can fix it?

Can i jailbreak iPhone 4s v. 6.1.3?

I was thinking if I could jailbreak my iPhone 4s? I can't update it to iOS 7, i don't know why but my phone says that 6.1.3 is the current version on my phone and i can't update.

How to prevent shortsightedness?

As of now, my optician says I have 20/20 vision, also known as "Pilot Vision". Which is great, as that's the best there's.

I'm a graphic designer, so I often spend most of my working days looking at my computer, iPad or iPhone.

Will this effect the quality of my eyesight? If so, how can I prevent this?