I noticed this in the FAQ page from Verizon:
You're not required to move to Share Everything but if you do, unlimited data will not be retained on your line. As a Verizon Wireless customer you have choices when you upgrade at discounted pricing. You can choose from a standalone data package starting at $30 for 2GB or a Share Everything Plan. If keeping unlimited is important to you, you can choose to upgrade and pay full retail price for the phone.
So it sounds like they may not be forcing current customers to adopt this new scheme, however they are cutting off unlimited data.
This has the full info:
http://solutions.vzwshop.com/shareeverything/pdf/verizon_share_everything_plan_details.pdf
Overages are $15 per GB
Activation/Upgrade fee is $35
$175 ETF for dumb phones / $350 for Smartphones
They also have a plan for non smartphones $40 a month for $700 minutes, $70 month for unlimited minutes.
$1.99 per MB for data on dumb phones with no plans....
To answer an earlier question if more than 10GB are needed it's $10 for each additional 2GB.
I love that it's $10 for 2 GB if you purchase it up front, but if you're on a lower plan and go over on data, they'll hit you $15 per GB!! Not only does the plan itself suck, but they can't even charge a fair rate for overage.............