No longer a labs option, file attachments in Google Calendar are going to the stable channel. A feature oriented towards shared events, this can allow you to share important information that can't be captured in a written description. It is live now on the web and the API is ready for use, which means we should see app developers taking advantage in the near future.
You'll see that "add attachment" option when creating a new calendar event, and when clicked you will see something like this:
That should look familiar if you've shared files on the web with any other Google product in the recent past.Read More