Personally not too interested in the MY15 apps, at least I wouldn't miss them in my 2014.
CarPlay would be very important to me, once that's released hopefully there will be a way to integrate it into older infotainment systems (but i doubt it).
Just emailed my dealer. My MY14 is on order scheduled to be delivered in sept - same date the article says 2015 will begin arriving. Don't see see the factory building both model years at the same time, and the delivery dates are so similar I'm wondering what is happening with current orders.