Below is an e-mail thread with my rep:
Verizon:
Here is what you must do. Call back to customer service, 866-294-1329
and tell them to add the following:
Step 1- Tell them to add feature code, EVDSB onto the account.
Step 2- Anyone there that is doing voice and data on a Blackberry 7250
will need MNAI3 added to their line. This is the promotional price of
$15 per month that will only be available for a limited time.
Step 3- Anyone there that may just have a Blackberry 7250 with Data only
will need to use MNAI1 added to their line. This is the rate for lines
that are Data only for $30 per month.
Once these codes are added, go to:
http://vzw.smithmicro.com/blackberry/vzw402
This will upgrade you to the latest version of the software that will
allow you to tether.
The 71764 you mentioned in the below email pertains to another market
and is irrelevant in your case. The above path will get you all set up.
This is not a free service so I'm not sure where you heard that from?
Remember the $15 price for Blackberries that have Voice and Data on it
is promotional so make sure you take advantage of it before it goes up.
Me:
I got my information from here:
http://www.blackberryforums.com/showthread.php?t=19599
Some say you have to pay some don't it depends on which location your
billing is. If I just want to have evdo support can I just add feature
code EVDSB or does that require MNAI3? Nowhere on the forums are they
talking about a promotional price. If I get MNAI3 added within the
promo window will it be $15 forever or will it go up later?
Verizon:
The price will be $15 for as long as you want the service.
The service isn't free in any market. The feature is a profit center for Verizon so whoever is bragging that they have it for free in the forum is lying.