It's like the Mac Mini, but much slower.
"open hardware ecosystem for Windows ... boosted support for new hardware platforms and technologies, such as ... CPUs including MIPS, x86, Alpha, Itanium, and x64"
So this was part of Microsoft's press release. Not to be nitpicky, but MIPS is dead, and Alpha and Itanium are super dead. x64 is an extension of x86, but whatever.