To expand on that previous idea, isn't it just using the Amazon servers? What makes the difference between them being beta and non beta?

US West (Oregon) Region
EC2 Availability Zones: 3    Launched 2011

US East (Northern Virginia) Region
EC2 Availability Zones: 5*    Launched 2006

Asia Pacific (Singapore) Region
EC2 Availability Zones: 2    Launched 2010

EU (Ireland) Region
EC2 Availability Zones: 3    Launched 2007

http://aws.amazon.com/about-aws/globalinfrastructure/#reglink-na