I know it's early, but the thought of using MetaWidget in conjunction with Seam has me interested.

I played around with the live demo and was impressed; but has anyone explored further down this road?  I'm really curious how it could possibly work with Seam and RichFaces and many different AJAX calls going on.  I highly doubt MetaWidget would support annotations for things like which AJAX component should be updated and when.

Anyone have any experiences to share?