http://www.muktware.com/news/3217/did-microsoft-just-kill-ubuntu-tablets
There is no doubt that Canonical is looking at the ARM based hardware
for its tablets. But Microsoft seemed to have nipped Ubuntu's Tablet in
the bud. The company tweaked its Windows Hardware Certification
Requirements to effectively ban most alternative operating systems on
ARM-based devices that ship with Windows 8.
On page 116 of Microsoft's The Certification Requirements, there is a
clear instructions for hardware vendors that under no circumstance
should the installation of another OS be permitted.
MANDATORY: Disabling Secure MUST NOT be possible on ARM systems.
This is assumingly the platform Ubuntu was looking for. So, does that
mean Microsoft just killed all the possibilities of ARM-based Ubuntu
Tablets?