On last October search engine giant Google released Inbox.
Google Inbox highlights the key information from important messages, such as flight itineraries, event information, and photos and documents emailed to you by friends and family. Inbox will even display useful information from the web that wasn’t in the original email, such as the real-time status of your flights and package deliveries. Highlights and Bundles work together to give you just the information you need at a glance.
Still Google Inbox is invite only but now its easy to get. For the people who still are looking for Google Inbox invitation, read this How to Get a Google Inbox Invite?
How to Get Invitation to Google Inbox Google Apps Accounts
However, users on Google Apps for Work accounts were left out of the initial, Google has opened an invitation program for company administrators who are using Google Apps Accounts.
Currently you need to email [email protected] from your Google Apps for Work administrator account to apply for an invitation.