Oh dear, oh dear… Here we go again. Microsoft invokes the anti-Midas touch, in that everything they touch turns to 5h1t. 
Microsoft Pulls Windows RT 8.1 Update
Well at least that makes it less frustrating to find your way around then 8.0.
This is why I love the advent of the mobile device as a real computer. No longer do we have to run one, and only one, OS. Now we have choice. I can run the same (or very similar) apps on any OS, so that allows me to look at stability, performance, and overall history when picking who’s OS will serve me. M$ is not winning me with stuff like this. It looks like the same old pattern and misplaced quality. This is why they don’t have mobile market share.