Windows 7 ate 9.
Not a big deal what it's called but what I hate is how Microsoft keeps renaming things. Look at the long twisted road of Hotmail. Be careful when you choose a name then stick with it.
The worst use of a license. Batman, the superhero who hates guns and they make shooter game based around him.
I currently use a 521 on T-Mobile. I know it's not the snazziest but for the price I'm very happy with it. I just don't see the advantage of upgrading to the 635.
Kind of silly that they released this for WP8. Unlike WP8.1 it can't earn points for mobile searches.