From the link below, it looks like B&G has a new planar driver out - very nice size (10"x5") - should go pretty low. Will it be available for the DIY market like the neo3 and neo8 ?
http://www.audioholics.com/cedia/cedia2004/BGradiaR800ribbonspeaker.php
http://www.audioholics.com/cedia/cedia2004/BGradiaR800ribbonspeaker.php