For the three development boards I use here, a company DINrPlate
has created several different style boards who can be mounted on a standard DIN rail. The boards support the several different style Raspberry Pi boards I have here. They also make one who supports the two type of name branded Arduino boards that I am familiar with. (I don't use the Mega board but I am aware of it.) They also show on the site a NetDuino who I do use on that board. It is an N3 model as it happens.
Does Parallax have any plans to create or support a mounting widget for their different systems?
Almost illegible writing on the side of Jabba the Hutt's last known residence, "My fortune is available in a cavern inside Beggar's Canyon. The map is is under a rock near the Sarlac." From a legend reported by someone on Tattooine.