It's a workstation motherboard using an IBM POWER ISA chip, approximately the same architecture used in pre-intel Macs, post-commodore Amigas, the PS3, XBox 360, and the various Nintendo consoles since the Gamecube, although really a separate line developed from those targeting more HPC and server roles. It's not going to compete with either x86-64 or ARM based boards on bang per buck and I'd expect it to run hot due to where it's come from, but it claims to be more open (perhaps due to apparently needing no binary blobs to boot and run).