How much could I sail my iPhone 3G for?

How much could I sail my iPhone 3G for? It's in great condition except for there's no volume button On it bc it fell off and the vibration doesn't work right on it but it's been like that since I've had it. It has a few scratches on the back but not to bad bc it's been in a case for most the time. Other than that works great.

Going to Cuba, what city is this resort located?

I'm going to a resort called memories azul breach resort. I'm trying to find how the weather is on my iPhone but I don't know the city and all of that. What should I use in my iPhone weather app?

IPhone 3GS: How can I make the phone volume louder?

I have the phone volume at the loudest level, but it's still very hard to hear the person I'm talking with sometimes. Is there any way to make it louder? Not on speakerphone, but on the small speaker you put your ear against during a call.

Iphone stuck on please wait?

I was jailbreaking it, and it reboots fine, but when it gets to actually jailbreaking it, it has the sort of cmd type screen and then it starts saying "please wait" a bunch of times. It gets stuck at this screen for a while, and then it turns on, but cydia isn't installed. I didn't turn the phone off before plugging in, and i did point it to ispw 6.0. This is an iphone 4. Please help

Added (1). Well, now that worked, but its stuck on the little pineapple now, and i don't want to mess anything up

Do I need a screen protector on my iPhone?

Okay so I've bough a screen protector for my phone, but it just looks awful. It's got a slight pinky, greeny oily tint to it, and there's just bubbles everywhere. The point for having a screen protector is to keep your phone protected and looking nice, but it honestly makes it look awful. I've heard that the glass for iPhones is anti-scratch, so is there really any need for a screen protector?

How much does a used iPhone 4 without contract cost?

My friend is offering to sell me his old iphone from verizon and we haven't come up with a price yet.
ALSO:
me and my friend both have verizon and i have a crappy flip phone but i was hoping to upgrade to the new iphone. If i buy my friends phone, what exactly do i need to do to connect it to my plan? Is it a complicated process? I'm not looking to renew my 2 year contract, although it already expired.

Can't play the video transferred to my iPhone 4?

I've used a program called Syncios to convert movies on my computer so that I can then transfer with the same program and view them on my iphone 4.
I'm positive that I got the right format and such, the only problem is when I enter the video app the movie is grey. When I press the movie nothing happens, I've also tried restarting and such but it doesent work. What does it mean that the video is grey? Some kind of buffering or is the movie too big? But that would be weird.