Microsoft Backup - For When We Inevitably Fail

I got this email from Microsoft this week:

"If you’ve ever lost files in a computer crash, you know the importance of backing up your documents. With Microsoft Office Live Workspace beta, you can easily store thousands of documents (up to 5GB) online.
Here’s how:"

It goes on to try to sell you their product. The words I love are "If you've ever lost files in a computer crash". It's a nice way of saying "If you've ever experienced a BSOD, virus, malware, trojan, permissions issues, etc because of our product...".
I know hardrives fail, memory goes bad, children put peanut butter EVERYWHERE but this is far less common that the BSOD. And since the majority of computer users try to function with Windows, they are specifically targeting their own consumers.
If you're concerend about backing up your data AND want to seamlessly have the files be updated on other machines, I suggest using the free (or paid version depending on your needs) Dropbox or the upcoming Ubuntu One.