The user interface of Windows Phone 7 Series will be made up of a bunch of prespecified control elements such as radio and push buttons, hyperlinks, and toggle switches. Here’s a round up of the ones you’ll probably see the most. As you’ll see, they all have the very consistent simple, almost text-based look, as found in the entire Metro interface. Above, we see the Push Button element.
(via: UI Design and Interaction Guide)