I just got my blog up and running at twentyten.us/wordpress (on a godaddy deluxe account), then in the process of trying to get the primary domain (twentyten.us) to redirect to the blog, I began to get this message:
This website is temporarily unavailable, please try again later.
I have no idea what happened directly preceding the issue, but I've tried many of the standard fixes (clearing cache and cookies, replacing wp-login.php, etc.) Now I can't even log in to my wordpress admin page for the blog. For a time, the "This website is temporarily unavailable, please try again later." was also appearing in a pink box below the content editing field on the admin page (before the admin page became inaccessible.