Apache Stratos is available as private Platform-as-a-Service.
You can deploy apps written in 2 languages to your private infrastructure of choice.
You can automatically bind 1 services and 0 integrated addons to your applications.
You can scale your applications horizontally or let Apache Stratos automatically scale your instances .
Usage and pricing options available are free usage.
Apache Stratos is in Beta since 2010-11-15.