It's definitely not soldered in. OWC says that it is similar but probably not exactly the same as the one in the Macbook Air, they are looking at providing an

It's definitely not soldered in. OWC says that it is similar but probably not exactly the same as the one in the Macbook Air, they are looking at providing an upgrade model like they do for the Airs: http://blog.macsales.com/14090-not-a-lot-of-options-for-macbook-pro-w-retina-display http://blog.macsales.com/14090-not-a-lot-of-options-for-macb...