The other caveats: Facebook is using the same smaller font size on the new Profile Pages it recently instituted in the News Feed section.

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The My Feed section is where most of the interaction happens.

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The most noticeable new feature is the eBay Feed, a section dedicated to providing improved product discovery features.

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There have also been suggestions in a section of the press that Mr Harper had turned down the feed volume.

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The app also includes sections for caregiving tips, notes for the doctor and the patient's appointments, plus a "learning section" with articles on aspects of Alzheimer's and an RSS feed for news about the disease.

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Tagged images are collected in a new section in your profile and won't show up in your main photo feed.

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