Maintaining unlimited data on vzw iphone 5?

I'm upgrading to a new iphone. Currently I have unlimited data and would like it to remain that way. Currently my line isn't up for upgrade but another person on my family plan is. Is it possible to upgrade through their line for iphone 5 at discounted price and have that number under the iphone 5 initially, then reactivate that lines old iphone 4s, then take the iphone 5 and activate it under my number while keeping my unlimited data.

My data consumption isn't that drastic but vzw has really upset me by basically forcing me get rid of unlimited and go to capped data and I'm just trying to find a loophole and stick it to them!

Added (1). I'm not trying to transfer the upgrade to my line, that would not work. I'm looking to upgrade the other line as if I was going to maintain that. I feel it is similar to as if the other line sold the phone on ebay then I bought it on ebay at "full price", except i'm obviously just selling it to myself without ebay but same concept. I know it will extend the other line 2 years, but my family has been using each others upgrades everytime someone has gotten a new phone.

Will adding music to my iPhone slow it down?

I'm getting an iPhone 5 this friday and i want to know if adding music to it will somehow slow it down? I currently have 253 songs on my itunes and i'm getting a 16GB iPhone. Will it affect the way the iPhone works? I have an ipod touch as well. The newest kind. I just wanna know if i should add music or just carry around my phone AND my ipod.

Best way to take multiple screenshots?

I'm re-watching an anime and I suddenly feel like taking screenshots of my favorite scenes on every episode, but I don't want to keep pausing the video to take them,
I wanna know if there's a way to just take a screenshot and it immediately saves itself somewhere, like you do on the itouch and iphone.
I've been thinking there must be a way since some people actually take over 300 screenshots of anime, and I doubt they copy and paste every single one

What can I use on an Iphone with no service plan?

My parents got upset and put my number on an old phone and powered it off. I now have an iphone with no service plan on it and I was wondering what I can still use on it. Can I use imessage and how. Also I know facetime works off Wi-Fi so how would I use that?

Will the iphone 5 be out of stock on september 27th?

I wanted to pre order it on friday but i just found out my upgrade is on september 27th. I'm with verizon and i was just wondering if there's a good chance that they will have them in stock around that date

How to change my 3GS iPhone layout?

I do I change my Iphone 3gs settings, the layout, how it locks, insted of the number pad, how to i get other lock codes, and how do i change my lock screen to have camera options on there without unlocking my phone? Is there anything else anyone can teach me, i really wanna learn how to use it. I have had my phone for 4 months and i can't do anything but call, text, download apps, uses, take pictures, listen to music, change my arrangement of my apps, and change my backgrounds, someone please help me! I know nothing about this phone!

IPhone 5 at store availability?

Will the iPhone 5 be available in Verizon stores on the 21st for a in store purchase? And by any chance do you guys know an average or just a guess on to how many devices they will have in store because I know try will sell out quickly.