The UI.
This gets me every time I pick up my girlfriends' iPhone: In the text message app, if you want to go to the contact info, you have to scroll all the way up, and hit some button. In WP you just tap on the users name. That's an example, but the entire OS is like that. What takes 2 or 3 steps on iOS takes 1 in WP.
Live tiles are fantastic, and the keyboard is the best keyboard I have ever used.
This gets me every time I pick up my girlfriends' iPhone: In the text message app, if you want to go to the contact info, you have to scroll all the way up, and hit some button. In WP you just tap on the users name. That's an example, but the entire OS is like that. What takes 2 or 3 steps on iOS takes 1 in WP.
Live tiles are fantastic, and the keyboard is the best keyboard I have ever used.