IPhone memory saying full but there's hardly anything on it?

Hi. My iPhone 4s is fairly new so doesn't have many apps on it (it's a 16gb).It's got about 500 photos and 160 videos (about 1 - 2 mins long). My music takes up 2.7 gb. So where has my memory gone? There's really not that much on it but when I try to take a picture it says not enough memory.

I need to get my Iphone 4 unlocked

I need to get my Iphone 4 unlocked pretty sharpish, I don't want it jailbroken and don't want to pay a stupid price, I was going to go into Vodafone and get it done but they said they need to talk to the contract holder even though my contract has ended? So yeah, any suggestions on where I can get it done for free?

Selling my iphone 3GS. Price?

I'm wanting to sell my 2 year old iphone 3GS 16 gb (in mint condition with sylicone case). Can anyone tell me how much it would fetch approximately in philippine pesos please?

Why do my iphone google searches show up on my home computers?

I have no used my hp laptop in almost an entire year, since I got my mac, which i got the day i got my iphone. However this summer when i returned home from school, my mac charger was buried under all my other stuff and i decided to break out my old hp laptop. I noticed that all my iphone searches (that i use google for and safari) show up on my hp laptop. I'm curious as to how this is even possible knowing that i go to school in a different and am using a different internet connection when i'm on my iphone. Not that i search anything inappropriate whatsoever, but these searches do appear on my moms laptop as well, and i was curious as to how this is happening. She does not own a mac either.
Anyone know how/why this is happening, and how to keep my searches private/separate that are on my phone versus my laptop.

What happens when I turn off 3G and celluar network on iphone?

I just went over my internet usage and I have more than 25 days remaining, it has already charged me about $30. If I turn off 3G and celluar network, does that mean I won't have access to the internet, meaning that it won't charge me. How does that work?

Can I use the Nike+ system without an iphone, ipod etc?

I'm very interested in the Nike Lunar Hyperdunk 2012+ shoes for the nike+ system which it provides. However, I do not own any apple product. Is there any way I can use the nike+ system without an Iphone, Ipod etc? I do have an android, is nike+ available for this?

What word means the accumulated damage over a long period of time?

What i'm looking for is a very specific word that describes the wear and tear over a long period of time. Like the indent on old stone stair that have had millions of people walk on them or scratches around a headphone jack on an iPhone from all the times someone has plugged in their headphones.

I thought this word was patina but that only describes the aged look of something not the subtle damage created by constant use over a long period of time. I'm looking forward to seeing what words people come up with.