In this post, David Anson focuses on one of the new controls called ListPicker that's coming with the second release of the Silverlight for Windows Phone Toolkit.
Source: David Anson
That's the gist: ListPicker is the control of choice for selecting values in Windows Phone 7 applications. To be more explicit, it is most appropriate in "Settings"-like scenarios where the user is offered a variety of different options and it makes sense to display only the current value (with an option to show everything once the user decides to make a change). Conversely, ListPicker is not appropriate for displaying long lists of data that the user is going to scan and scroll; scenarios like the "People" or "Marketplace" applications are better served by a ListBox or the Windows Phone Toolkit's new LongListSelector.
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