Thanks for the suggestion! I don't think either of us had thought of that.
Inside the app, Home is a starting point that lets you see your news highlights at a glance. It does seem like the concept could be broad enough, as you say, to support history and bookmarks...
The inspiration came from Firefox Mobile, which has a unified home screen that incorporates navigation, recent history, bookmarks, and tabs from other devices, all in the same home screen.
If Home is highlights of the day, then it seems natural to scroll down and see a heading for "Yesterday" with yesterday's highlights, rather than less relevant news from today (which could appear in the other views).
Inside the app, Home is a starting point that lets you see your news highlights at a glance. It does seem like the concept could be broad enough, as you say, to support history and bookmarks...