UPDATE 2: Updated for Silverlight 2 RTW. It now uses the CompositionTarget.Rendering event (haven’t updated source yet, but it’s really easy :) ).
I’ve updated my Silverlight 2D Physics demo again, this time for Silverlight 2 Beta 2. You can preview it here and get the source here. Although all I did was recompile it, at some point in the past I exposed a bug in the BulletX physics engine (previously it had a workaround [hack] to prevent it blowing up). You might get the occasional “Index out of bounds” error and weird behavior (the wheels/heads might fall through the platforms, then throw you to a blank page!). I’ll update here when it’s fixed :)