It's great to read that the current beta has offline mode. Is there any further information anywhere about this? I'd really like to know what's possible out of the box.
Well basically before we were loading resources from google, etc and now it's all self-contained. So if your internet was down or you were running on an offline computer (such as a kiosk or laptop with a web server installed) it could still run without issue. I should clarify that it's not that users can use the CMS when "they" are offline, it's that the CMS will continue to work when the server it runs on (which sometimes can be the same computer you're using) doesn't have an internet connection.
Hope that helps, let me know any other questions.