Will open source IaaS platforms ever challenge Amazon, Microsoft, Google?
Increasing popularity of open source cloud infrastructure platforms such as Eucalyptus, OpenNebula, Nimbus, Xen Cloud Platform and OpenQRM has raised hopes that open source can establish a stonghold in the IaaS platform space.Still, some open source advocates maintain that Amazon, Microsoft, Google and Rackspace will continue to control and build out a proprietary public cloud infrastructure until the open source community collaborates more closely.