>>wglb+(OP)
Maybe I misunderstood this article. It seems to me there is a security issue in X Server, which gives out keyboard input info to all running X apps. That's fine. If that's X Server, just fix it then everyone will be happy. Why introduces all the Xen/VM stuffs into this problem. It is like you have a mosquito flying around, but you choose to kill it using a nuclear bomb.