Shaun here, product manager at AppScale Systems. We currently have a number of customers running their applications on AppScale in production (Chico's FAS, the World Wildlife Foundation, and ParknCloud to name a few). We also have quite a few high-profile customers that will be deploying in production in the coming months, so stay tuned :)
Customer case studies: http://www.appscale.com/resources/use-cases/
