The Windows Azure Team has just release a July CTP Breaking changes announcement since the already breaking changes in the Workflow Services, now there are changes also in the .NET Service Bus.
“(…)Queues and Routers data will NOT be persisted and restored after the maintenance. Users will need to back up their data if they wish to restore them after the July 2009 CTP release. Please see below for detail.
As previously announced, the existing Workflow Service will be removed from .NET Services in the July 2009 CTP release. Any solutions that currently rely on the Workflow Services will have to be modified on or before 7/7/2009 9am PST in order to continue functioning smoothly. Existing solution Workflow Service metadata such as Workflow Type will also be deleted and cannot be retrieved after the July 2009 CTP release. (…)”
“(…)NET Services and the .NET Services Portal will be unavailable during this period.(…)
Read more here.