Starting at 2300 UTC Mar 11 2009, there will be 2 (two) hours of outage for all services hosted on projects.centos.org
The machines that host these services are being moved to another cabinet within the same hosting facility.
If there are any questions you might have, drop into #centos-devel and someone from the CentOS infrastructure team will be around to talk with during this outage and a few hours leading upto the outage.