Any word on if this still works ?
I am wanting to do the same thing but when I go online and look at either of my phone's upgrades it says this "You currently have an Unlimited Data package on one or more lines on your account. The Unlimited Data package is no longer available. To continue, please select a new Data Option for all of the lines on your plan. You will not be able to go back to your current Unlimited Data package."
So I am assuming since it says select a new data option for ALL of the lines on your plan that this wouldn't work? Or does it just not work online?