Questions about plonetheme.sunburst

I'm in the process of going through the viewlets in plonetheme.sunburst 
to document them in the theme reference (I'm using Plone 4 alpha 3).  
I've got a couple of questions:

1. What's happened to plone.document_actions? The document actions are 
there in portal_actions, but the viewlet seems to just render an empty div.

2.  Is it intentional to not have the path-bar  (breadcrumbs) in 
plone.portaltop?

Thanks

Anne

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