If any effort is put into making yet another RTG system, I think it would be great to first investigate if the new OS4.1FE integrated RTG/graphics.library API could be backported to 3.x, and thus share driver and application code moving forward.
I'd inquired about the driver API per this link, but have not seen any response yet.
http://www.amiga.org/forums/showpost.php?p=797841&postcount=26
