Maybe not so much a raspberry pi as a Mac Mini or other kind of small non-laptop form factor system; I'm sure that, especially with these plans, someone can make a VESA-compatible mount.
From the blog post accompanying the release: "In addition to 2D drawings of the Mainboard to help you design your projects, we’ve released two 3D-printable reference designs. One is a minimal VESA-mount holder that lets you attach the Mainboard to a monitor or TV, while the other is a fully featured small form factor desktop case."