I get "Service Unavailable" when I go to my (hosted, not local) test site.
It had been working just fine until I decided to swap databases today.
I deleted the old database and replaced it with the new database. I kept the database name the same. I changed the username and password in cPanel and then duplicated those changes in my craft/db.php file... But no dice... I get the nice little warning:
Our site is temporarily unavailable. Please try again later.
I have checked more than once, the path, db name, username and password all check out. Any suggestions? ...other than start over