Here at AppBridge, we watched the Google I/O conference announcements very closely. After all, our entire business is helping our customers go Google, so they can effectively use Google Apps. This announcement of a new Sheets and Slides API was great news as it potentially expands what we can offer in our migrations to Google Apps.
From the announcement of the new Sheets and Slides APIs, "The new Sheets API is available today. Find the developer documentation as well as a codelab to help you get started at developers.google.com/sheets."
For more information, check out the new Sheets and Slides APIs announcement, or watch these videos: Build seamless integrations with the new Google Sheets API and Keep data flowing between your app and Google Slides with the new Slides API.