It was a good chapter. And yeah, there were a few differences here from what we found out in HP6 and HP7. (Blaise Zambini is a boy, for example. And Kingsley Shackelbolt is reversed.) Very minor really and only mildly distracting even for someone soaked in the HP world.
One of the things I love about this story is that you do a good job with the transition from canon to your own story. So many fanfiction writers just skip that or mess it up.
Windows Phone hands down.
I like my xbox achievements on my phone.
Plus, it's a unique, useful interface, unlike iPhone and the me too Android interface.