Ask E.T.: Windows Phone 7 Series (WP7S)
www.edwardtufte.com/bboard/q-and-a-fetch-msg?msg_id=0003cy&topic_id=1&topic=Ask%2BE%2eT%2e
From the page
Saved with the link. Notes from 2007 to 2016 are mostly the page's own words, so this is probably an excerpt.
The WP7S interface has an extra sequence/layer added by big-button opening screens for the new ways of organizing stuff. Compared to the IPhone, most of the WP7S organizing screens have lower content resolution, which violates flatness and leads to hierarchical stacking and temporal sequencing of screens. In day-to-day use, maybe the panorama screens will solve the stacking/sequencing problem, or maybe they will just clutter up the flow of information. Of course Microsoft's customers are already familiar with deep layerings and complex hierarchies.