For example, you can now publish a PDF file by clicking on "Share", selecting "Get the link to share" and checking "Allow anyone with the link to view (no sign-in required)". While the file becomes publicly available, you still need to log in using a Google Account, despite Google's claim that no sign-in is required.
Until now, spreadsheets had an unique feature that allowed you to collaborate with anyone that received the link to the spreadsheet, without even having to log in. The feature is now available for documents and presentations, so it's easier to collaborate with many people.
Try the new features:
1. Read some Gmail tips from Google in a published PDF file.
2. What do you expect to see in Google Chrome OS? Collaborate on a Google Docs document and share your thoughts.
{ Spotted by Jérôme Flipo. }
