Recently Knoldus, presented at the IndicThreads conference, New Delhi on the power of Akka 2.0. The case study involved a demonstration on how a major white goods company is able to analyse their social feeds in real time and respond back to customers needs.
The solution currently runs on a cluster of 40 nodes with 16 cores on each node. The presentation emphasized on the need for immutability and how Scala and Akka were able to solve the business case.