Bummer that the Atmel SAM3X8E is no longer in production.
For various reasons, I never got my DigiX up and running when I got my unit once the kickstarter campaign finished, and it sits waiting for me to do something with it. If somebody needs a DigiX immediately and wants to buy mine for the kickstarter price + s/h, contact me. I also have the level shifter shield that is still available, if you need that as well. For US delivery, I believe it would fit in the small flat rate box ($6).