Still possible to use att iPhone 3GS on straight talk?

I have an AT&T iPhone 3GS with no SIM card. I have looked online and it seems straight talk is no longer offering AT&T SIM cards, only tmobile ( i really don't want to use tmobile towers!) My question is basically how do I get a SIM card for my phone that will allow me to use AT&T towers? Please be as specific as possible a link / how-to won't hurt my feelings!

My iPhone 5 won't sync with iTunes?

I get this error message: My iPhone 5 won t sync with iTunes

and I still have 9.73GB left. What is going on?

Added (1). I'm adding 3 songs. I doubt 3 songs is about 10 gigs

IPhone 5 poor video quality?

Whenever I go on YouTube it says HD on some videos, but then the quality is horrible. I wondered if its my phone or if there's settings somewhere? Also I have an app that plays videos of all this car stuff and they're I'm perfect clear quality, so if someone can help me it'll be greatly appreciated!

Iphone 5, Looking for best equipment for making Youtube Videos with?

I was going to buy an expensive camera to start making youtube videos with but I didn't have the cash, so basically i'm gonna use my Iphone 5 because the camera isn't too bad tbh.

It's literally just going to be pointing at me from one spot

Just wondering if there's a lens that will improve the image? What about a tripod and an external microphone?

If someone could give me links to all of these that'd be great!

I'm trying to mak an apple ID account?

I need to make an apple iD account bought an iphone second hand… I'm agreeing with the terms and conditions(on the iphone its self) and then it tells me to put in a username(so i think that means email) and password and it always says its wrong… Help

How much is an iphone4s without a contract?

I'am thinking on buying an iphone i wanted a galaxy s3 but i made my mindup and i'm getting the iphone but how much is it ithout a contract and at&t please
also if yall have any websites that i can go to with more information a would appriciate it thanks you all!

Is there an an iphone application for spelling and grammar?

I'm looking for an iphone application that if I type in text messages that it can grammar check them prior to sending then and spelling as well.

I know that spell check exists on iphone. But when I was texting a girl I kept using the wrong Their and there and than and then. And was wondering if there's a way on a phone to correct that mistake prior to sending.

How much is a iPhone 5 without a upgrade?

I have a iPhone 4 and the button in the top right randomly stopped working then the light did as well. I don't have insurance so they are charging me 300$ for a new one. I live in Vermont for the tax part if that helps. I also have Verison