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During the next two weeks, Google will roll out the new feature. It will appear on the right side of the Gmail interface and shows a picture of the person whose email you're reading, a short paragraph summarizing the last email you received from that person, subjects from emails from the past month, an abbreviated calendar showing availability, and documents that person has recently created.
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If you're engaged in a group email conversation or a Google chat, all those participating will be listed along the right side, and above them will be icons leading you to a variety of ways to communicate with them, including chat, email, calendar events and phone calls.
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