By any means, this is certainly far from being one of the biggest changes Gmail’s ever seen — still, it’s one that’s likely to make a few tasks a wee bit easier for you. Inside the recent tweaks, Google added a new quick access trait that makes contact details — such as phone numbers — show up automatically in search results within your cherished G inbox. Additionally, the Android-maker has improved the Google+ integration (again), now allowing folks to narrow down conversations from specific Circles in the search box (you know, something like Circle: Awesome Engadget editors). Google says the changes will be rolling out over the course of the day, but in the meantime, you could always check out what exactly happens behind Gmail’s closed doors.
read more: http://www.engadget.com/2012/05/16/google-gmail-update-contact-details-circle-integration/