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?

It is probably is the bare minimum that you could get by with 4 smart phones

It all depends on how much data you plan to use. I surf the web and watch videos a good amount everyday. I use it for research and I use it to stream videos for leisure. I would say around 30 minutes of video and an hour or so of internet surfing a day. At the end of the month, I only use around 1.4GB to 1.6GB.

  • What is data in a Verizon data plan? I just got an iphone 5 and am having some trouble. I know that data includes email, accounts and any internet websites (facebook, youtube, netflix). Does it use up data to have multiple internet browsers open even though I only look at one at a time? Is it possible to use up data when the phone is off? Also, is taking a picture, playing app games, listening to music, and siri considered to be "data" on the data plan? Is there an overall explanation for what a data plan is?
  • Is the 2GB data plan on Verizon enough for iPhone 4s? I'm switching providers soon and I want Verizon and to get the iPhone 4s but I noticed you pay for however much data you use. It's not unlimited? So do you think the 2GB data plan is enough? I do go on the internet a lot on my phone now such as Facebook and Tumblr. I take a lot of pictures and have a lot of apps. I'm just afraid I'll go over and then my dad will have to pay more… It's already expensive enough.
  • Is a 500mb data plan enough for me? I will only use the Internet once in a while when i'm outside the house, in the house i have an iPod touch and Wi-Fi. I want to put my 500 songs from my ipod in my iphone does that take up data? Do pictures take up data?
  • Is 500mb for a data plan enough? I'm planning on getting an iphone and i'm wondering if 500mb of data would be enough. I spent most of my time at school & home where i have Wi-Fi. So i wouldnt be using data as much, just occasionally in case i need it. Would 500 be enough for me or no?