What interests me, is how can it be a new off the fab line....PA6T.
I think there are rumours that Apple allowed another company to take production of the Pa6T for the contracted and warranted customers. Maybe they even were allowed to do some advancments like a die shrink with a transition to another process (45nm). But I don't know if there is any truth in those rumours...
Anyway the PA6T unfortunately (it actually is a nice processor) is a dead end and probably very expensive (well, it gets produced in low quantity and gets primarily sold to mil customers - who have a different approach to calculate costs).