Hello komby,
Wow, I am amazed with what you have pulled off. Nice work!
This is getting really good. So far, you are the fourth developer with a Due DIY board-oriented that includes the Ethernet phy interface (floating or embedded).
Here the list (with no order of preference but chronological for me):
1- as-kit.ru new AS-SAM3X board (also includes the CAN bus embedded interface)
2- elechouse.com new Taijiuino R2 version.
3- Graynomad's Black Diamond (also includes CAN bus and other communication interfaces).
4- komby (web site?)
I am happy that this initiative has already gained a great deal of software/hardware support.
Thank you,
Wilfredo