This can easily be solved with MS coming out with there own number. Or verizon.
And I am pretty sure if someone told me that they had sold 503 phones, I would have asked some more questions.
"They only sold 503 phones on the weekend"
"What, for the enture country"
"Oh no, just at this one store in Arizona, and they were only open for 1 hour, and they ran out of stock".
"Oh, not so bad then"