rhiaro!tell cwebber2, tsyesika: What's the model for access control in AP? From the spec I can vaguely get that you can grant access to Collections of Actors, but I'm not really sure how that's modeled. Is there anything in terms of read vs write? Is it assumed that soeone can only write to their own resources? How does that work with say, adding to a shared photo album? (cc sandro)