WSO2 Stratos, which offers WSO2 SOA platform as a service, is now live, up and running. Stratos opens up a new deployment choice for our servers, by enabling them have their servers as a Service. For example, if a user need a Governance Registry, he had to either run it real hardware, run it through a Virtual Machine, or run it through Cloud. Now, there is a forth option: that is get it as a service through WSO2 Stratos. Of course there is much more to Stratos, see http://wso2.com/cloud/stratos/ and The Six Weeks and 12 People Magic for some more details.
You can find it from https://cloud.wso2.com/., and you can try it for free.