This is some mega speculation here . . .
There's been a mysterious top-secret Apple project in the works for a short while code named "Project Azalea" that is believed to involve building a a new chip fab. There's literally hundreds of articles about it (if anyone is bored enough to read a few, just google it) and nobody seems to truly know what it's about. Here's a sample article from last December:
http://appleinsider.com/articles/12/12/19/mysterious-project-azalea-believed-to-be-codename-for-apples-us-based-chip-production-partner
And a couple of others . . .
http://www.phonearena.com/news/TSMC-headhunting-in-the-NY-area-hints-at-where-Apple-will-make-its-future-mobile-chipsets_id45861
http://www.eetimes.com/author.asp?section_id=36&doc_id=1266325
I'm getting really carried away, but wouldn't it be a blast if Apple is going to reveal POET as part of this mystery?