Is a Verizon 10G Data plan enough?

I'm looking into the Share Everything Plan through Verizon. Once my family upgrades we'll have 4 Smartphones (probably 3 iPhone 5 and 1 iPhone 4).Is 10G of Data enough/more than enough for 4 smart phones?

How to get my college email on my iPhone 4?

I go to Community College of Philadelphia and I want to set up my email on my iPhone 4. But everytime I try it says my username or password is incorrect. When it isn't. And i don't know any of the server names either. Can anyone help me?

I need your help in this game?

I've been playing a game called Parallel Mafia and I could use your help. It's FREE to play and you'll get a huge bonus if you start playing. Just enter my referral code when you create your account.

My referral code is: "qzrvump"

All you need to play is an Android or iOS device (iPhone/iPad).

Parallel Mafia is a location-based game that uses your GPS location to place your gangster in the game world on top of your real world map. Build business fronts, do crimes, and rise through the ranks with me! To download, just search for Parallel Mafia in your app store. For more info about the game, check out this link:

http://parallelmafia.com

My iphone won't vibrate even though vibrate is turned on?

I have an iPhone 3gs and it worked fine until I updated it (ios 6).
My phone, when on silent mode, won't vibrate when I get a message.
In settings, everything is turned on, the vibrate part is selected.
When the button (above the volume) is not on silent and then is flicked down to silent (vibrate) mode, it vibrates. However, it does not vibrate when I receive a message?

Any assistance would be greatly appreciated!