one of the issues I had before the release of 0.8.8.0 was that I needed to create all the controls separately and they having reference to the "real" objects in Balder.Core. I couldn't figure out a better way to do this. But last sunday, I had
a revelation. :)
Next version will have a lot better support for this, as the Core (real) objects will be exposed as Controls instead. That means that you can derive from game and create your own game class and implement Update and so forth, and then put this in your Xaml
I will also look into exposing an Update routed event.
Another thing I'm looking into is to provide a Transform object on Node that will contain Rotation and Scale - much like the CombinedTransform that will be in Silverlight 4 for 2D manipulations. That way one can storyboard rotation and scaling of objects
I'm considering putting out a interim build (0.8.8.5) so provide this sooner than a 0.8.9.0 version. Can't make any promises yet, but these are the goals at least.