On Eweek it has been reported that:

“Engine Yard has delivered JRuby on its cloud platform to enable Java developers programming in Ruby to innovate faster and scale their apps.

Engine Yard has announced the general availability of JRuby on the Engine Yard Cloud.

With JRuby support, the Engine Yard Platform-as-a-Service (PAAS) brings together the combination of Java performance and Ruby agility. JRuby, a Java implementation of the Ruby programming language, is a popular open source package that enables Ruby applications to run on the Java Virtual Machine (JVM). JRuby allows Java developers to use Ruby to efficiently expand the capabilities of Java applications or create new applications that leverage existing Java software.

“We are thrilled to announce that customers can now use JRuby in Engine Yard Cloud and leverage the power of Java on the Engine Yard platform.” said Dr Nic Williams, vice president of technology at Engine Yard, in a statement. “This is huge in that it is the first truly threaded implementation of Ruby to have full production support. Customers can get the performance benefits of real concurrency in an enterprise-grade environment. Engine Yard is the first platform to make available all stable, production-ready Ruby implementations, including JRuby, MRI, and Rubinius.””