I'm trying this out. With each product node storing attributes locally, it is difficult to even do things like make a price change to all products using a particular attribute. Please do continue development.

One idea for further exploration--would it be possible to change individual attributes. Suppose one finds a spelling error or want to make a price change on the yellow t-shirt only. Currently, this is done by disabling the old attribute and enabling the new version product by product. Could you expand this module to do global changes on individual attribute changes?

Now that would be awesome!