Read Ben Thompson's Apple Watch: Asking Why And Saying No for an examination of why the AppleWatch announcement is very announcement is very different from the iPhone announcement (along with the iPod and iPad announcements too).
This is the first Apple announcement I can readily recall where they didn't mention a shipping date, battery life and full pricing details for the new product.
http://stratechery.com/2014/apple-watch-asking-saying/
This is the first Apple announcement I can readily recall where they didn't mention a shipping date, battery life and full pricing details for the new product.