GoDaddy's service was down for a few hours today. As Wired report:
I picked GoDaddy for my name host because at the time they were inexpensive, but the hassle of dealing with their unusable interface and apparent lack of security suggest it's time I moved to a new service provider. I'll be looking into it this coming weekend and will likely arrange a transfer of hosting.
This will hopefully be pretty smooth, but there's a chance the site may be unavailable briefly.