It's likely that Ford has a contract of some sort that prevents them integrating fully with Siri and iOS.
It'll happen eventually and I'm sure Ford is kicking themselves for creating the situation they are in.
I mean really, how can you seriously just ignore the most widely used mobile operating system? It's got to be in a contract of some sort.
2011 SES 5spd #006 >> SR #213
What other people think of me is none of my business.