Enable Mobile Browser View for SharePoint Online public site

So you upgraded to SharePoint Online 2013. If you are like me, you might have been looking on your SharePoint Online public site for the mobile "Contemporary view". However, you will NOT find it. "Manage Site Feature" does not exist in a public site.

You can use the mobile Contemporary view for your SharePoint Online private site collection. First you will need to enable the feature via Site Settings > Manage Site Features > Mobile Browser View.



The right image is the standard view. The image on the left is the mobile contemporary view.

New ways to share with external users in SharePoint Online 2013

The sharing functionality in SharePoint 2013 has been improved and made easier. In the upcoming SharePoint Online 2013 (currently still in preview), you can make use of it already, as described here by Microsoft.
 

http://sharepoint.microsoft.com/Blogs/GetThePoint/Lists/Posts/Post.aspx?ID=673