Why won't itunes let me backup my Iphone?

Every time I plug in my iphone to my computer and itunes comes up I get this message

"Itunes could not back up the iphone because the backup was corrupt or not compatible with the Iphone."

What does this mean? And why can't I backup my iphone?

should I not update to iOS 6 before I have my phone backed up because I'm afraid I'll lose everything.

What iPhone is a good one for me?

My mom was hinting to me that I might get an iPhone for Christmas. What color is a better one for me? Black or white? I don't want to be called gay or anything for having the white one. This is a really stupid question but do any guys have a white iPhone? Or are the black ones for guys and the white ones for girls?

Why am i so spoiled, what should i do?

I know its not my fault, but i really wish i wasn't so spoiled and ungrateful. I got an iphone 4 for christmas last year, and it started having problems. My parents offered to buy me an iphone 5 for this christmas but i refused, because i really don't want any new iphone. So my mom got me another iphone 4, but my dad used it for a couple months, and i just feel like crying because its not brand new. I'm trying to stop but i can't, the feeling won't go away. I hate being this way.

I dropped my iphone 4 in water? - 1

Now it won't play music and when people call me I can't hear them. I know that the sound still works because it works with the voice memo thing, and music will play if I play it from the lock screen. I tried turning it off and it's been sitting in rice for like 8 hours so I don't know what else to do.

Jailbreak iPhone 4S iOS 6.0. Is it possible yet?

Hi, i just bought an iphone 4s and i'm wondering if it can be jailbroken yet on ios 6? I've looked around the web and can't seem to find anything. Also what would be the major positives of jailbraking?