Inadvertently, I stumbled into this. And he is right.
I went to RS to upgrade (after I had revised my plan w/Sprint on the phone earlier that day). When I gave the RS clerk my phone number she told me I wasn't eligible for an upgrade. At first I was kind of peeved as I thought I had it all worked out with Sprint. Then the clerk noticed I had a second number on my account (there was a drop down on their screen that showed a second number). When she pulled that number, it showed I was eligible for an upgrade
for that number.
I had no idea what the number was. I assumed the Sprint CSR had did some trick when I changed plans and gave me a new number. But I didn't care as somehow, someway I had scored and upgrade and an Evo. Now, from the OP, I see where that second number came from.
So, if you do have an Airave (and had it for a while) ask them to check
both numbers on your account..you might score the Evo.
Shall we call this the
AirEvo Loophole?