If you use Auto Backup to instantly store your smartphone_and tablet photos on Google+, you’ll soon be able to add them to new Gmail messages with just a few clicks. Starting today, Google is updating the ‘Insert Photo’ button located on the bottom toolbar of new Gmail messages to include photos that have been backed up from mobile devices. Hit the icon and you’ll be shown the same grid interface found on Google+, with tabs for recent photos and all of your curated photo albums. The option to upload a new photo from your PC or laptop, as well as...

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