Eucalyptus alternatives

Eucalyptus enables companies to operate scalable clouds without losing control over data or application performance. Empower IT and DevOps teams to be more responsive to business needs and to deliver services both on premise and through AWS. Cap public cloud spend without changing applications or tools, using Eucalyptus, the easiest to manage private cloud solution.
Eucalyptus alternatives are:
OpenStack, Amazon Web Services, VMware vCloud
Here are the latest news about Eucalyptus:

2014 HP buys Eucalyptus to link Openstack and AWS

HP, which is basing its cloud strategy on OpenStack, has decided to buy Eucalyptus, a backer of a rival open-source cloud technology. And Eucalyptus CEO Marten Mickos (once known for his anti-OpenStack rhetoric) will lead the company’s cloud effort as SVP and general manager of HP’s cloud Business. Company executives didn’t provide much detail about integration plans, but stressed that Eucalyptus brings valuable experience in deploying private clouds that interoperate with Amazon Web Services to HP and that those AWS “use patterns” will come in handy as HP continues to push its OpenStack-based private, public and hybrid cloud vision into enterprise accounts. On the enterprise cloud market HP competes with Red Hat and IBM on the OpenStack side of the spectrum and VMware and Microsoft on the proprietary cloud side.