Regarding Encumbrance:
After some experimenting, they ARE using the Strength rules for how much you can carry before you become overloaded. I loaded up my Warlock with everything I wanted to sell, and she got a red 'weight' icon on her character portrait and couldn't run anymore, just a slow walk. So clearly, some kind of 'load indicator' would be a good idea.
What I also found was that she started walking THROUGH crates and barrels - they started taking damage and exploding from being in proximity to her. I'd call that a bug. :P
