The first Activity page captures events and publishes them as timelines, as a sort of social activities system – which was previous blogged in detail here. Notice it also now does user profiles This allows events such as “new repository” or “file edited” to be captured, indexed and filtered to be displayed in custom user dashboards. It will come with a number of out of the box filters, but should be user extensible over time.
We have a video here, using an old CSS and layout. The aim is to allow for user configurable dashboards, for different activity types.