said by laserfan:
Not sure how you would know this, but I'm enough of a believer to pop for $39 bucks anyway!
We'll to be honest I am not 100% sure, but I have swapped out devices under warranty BEFORE they killed off the 40 plan. I just assume it holds true.
Checking their statements they implied the only way to loose the $40/5Gig would be to change plans, or not have an active plan for more than 12 months.