Internet is a single slice of beef

As the You Tube incident showed, the Internet itself can be a single point of failure.

Microsoft can hose their own systems (and have) or their DNS records could be misplaced (or poisoned), but I think the vast majority of Microsoft's new (advertising supported?) customers will be small enough to not have an IT department and so won't have multiple links anywhere.

BTW: apparently rancid butter is the preferred condiment for whale these days.