YESIn the comments they say that you can switch to a different computer.
Still don't think it's a good deal. Can't backup disk images/OS or external hard drives. And, even though it's "unlimited storage," that doesn't mean they can't make adjustments to speeds, versioning, etc in the future.
I pay a little more for a Crashplan subscription and get much more out of it, not to mention their awesome app that lets me access any of my files remotely from my iPhone. I've gotten a lot of use out of that.