We've launched the new version of the Office Online site at office.microsoft.com.
It has a more "ribbony" feel to it which is nice and it feels very clean and easy to navigate. You can personalise it so that products that you are more interested in are highlighted and content more relevant to your role comes up.
If you are registered with Office Online, you can publish your calendar so that others can see it. You can control who has access and what they can see too. I have two scenarios: 1. it would be great if my wife and I had a shared calendar 2. it would be great if the PR agency had access so they could plan briefings I do.
I'll see if this works for us and report back.