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Back in May last year, JAX Magazine put its head firmly in the clouds, just as the hype behind PaaS and IaaS was frankly becoming intolerable. It seemed as if a day didn’t go by without another company arriving with a different platform claiming to be the answer to putting application up in the cloud, but the time was right to provide a general overview. We looked at why PaaS was now a necessity in the enterprise and dissected each offering, from OpenShift to Cloud Foundry, giving you the strengths and challenges of each platform. Through entirely coincidental planning (honest), this issue of JAX Magazine revisits the cloud and asks what has changed in twelve months. Is it still a heap of hype or have fledgling projects nestled firmly into the furniture of enterprise environments? The answer lies somewhere in between. 2012 wasn’t exactly the Year of the PaaS in terms of adoption but awareness of cloud platforms has never been higher. Now the talk surrounds infrastructure projects and in particular, the open source battle brewing between the collaborative OpenStack, Apache’s CloudStack and a number of outsiders like AWS-linked Eucalyptus. OpenStack in particularly has received the most column inches, mainly because of the players involved - Red Hat, IBM, HP and others are all contributing to the codebase. We sat down with the OpenStack Foundation’s Executive Director, Jonathan Bryce to talk about the state of OpenStack, its future and just how they keep order and attempt to maintain interoperability. Some might argue that the enterprise demands AWS-style like services within a PaaS - after Amazon is the unopposed king when it comes to cloud computing. Cumulogic CEO Mike Soby tells us why we should stop trying to define the platform and why we should follow AWS in offering choice between contextual/composable PaaS solutions and modular cloud services. It all depends on the complexity of the application. WSO2’s Paul Fremantle shows us around the first truly open source PaaS Stratos 2.0 and its architecture. We also find time to talk to jclouds founder Adrian Cole about the portable cloud library’s imminent move to the Apache Software Foundation. Don’t worry if you’re sick of the cloud, we’ve got you covered. Andrey Breslav, the brains behind JVM language Kotlin shows us how the statically typed language is a perfect fit for contemporary web programming.