Thier own worse enemy
Everyone keeps stating that Linux will take down MS. This is not going to happen.
Microsoft will bring about thier own demise through thier underhanded way of dealing with competition. They have decided a long time ago to build such programs as IE and Outlook into the OS so as to circumvent competitors. This is now bitting them in the A$$ as a bug in one will leave the system open to an attack. The best thing that could have happened for MS was that the ruling a few years ago stated they have to split between OS and software. Then with the programs not so tightly intertwined it would be less open to attacks.