Those of us effected by the recend server upgrades at Blizard will have a 48 hour credit added to out accounts. Go Blizzard!
QUOTE
In our effort to try to continually improve everyone's game experience, we recently updated some of our database hardware. This update required extended downtime for certain realms as we transferred some of our data from our launch servers to our new servers. The hardware update and data transfer was intended to split the load among multiple servers, which would in turn improve performance across the servers involved.