Today Citrix announces that XenSource acquisition is completed, and confirms that Xen development will still be led by Ian Pratt, co-founder of XenSource.
Citrix also reveals that Ian Pratt is now an employee, which implies a remarkable impact on how the open source hypervisor will evolve.
So the question is not just about how much committment Citrix will have in open source, but how much support thet will continue to receive by other Xen contributors, like IBM and Red Hat, which probably don’t feel too comfortable about company’s deep relationship with Microsoft.