I suspect that a lot of buyers are going to wake up on the 30th with a (financial) headache. And we're not the first to see this - the big airtime providers have been pumping stories into the UK press this week. For example take this one from the broadsheet 'Telegraph in the UK;
If one calculates the retail value of the cumulative expired minutes and divides that into the 'suppliers annual profits we'll see they make half their money by not having carrying-over.
It take more than hype to compel an industry to rebuild it's collective business model, not even Apple hype! It takes a quantum leap to do that, and iPhone is not a quantum leap (yet).