@audiokinesis - AFAIK, the diaphragm itself is made by a 3rd party, so we could be on the verge of several makers producing glass dome drivers.
Would also be really interested in seeing glass mids. :)
A major reason I'm pro-glass is that it's not toxic and brittle the same way Be drivers are. Also, perhaps with advanced molds/processing techniques distortion and ringing could be optimized?

