The acquisition is expected to close in the fourth quarter of 2007 and includes a combination of cash and stock. XenSource only has 650 paying customers, but the idea with acquisition is that XenSource's products will get wider distribution through the Citrix sales channel.
"I'd expect that most of the Citrix channel is appropriate for the products we have; it's something we think will light up the availability of our products around the world."
XenSource builds commercial virtualization technologies that build off the Xen open source hypervisor project that is backed by IBM, Red Hat, Novell and others. Earlier this week XenSource launched its XenEnteprise version 4, which expands the platform with more features in a competitive play against VMware.
Though XenSource may only have 650 paying customers today, Levine was quick to note that the number of customers has been doubling quarter over quarter and the release of XenEnterprise v4 is expected to accelerate that growth.
Levine said that there are "tens of thousands" of users for the free XenExpress product. Those users have been waiting for the enterprise features in the latest XenEnterprise release, and Levine expects rapid customer growth acceleration as a result.
Citrix and XenSource officials on the morning conference call highlighted the huge potential for the XenSource products, specifically on Windows. XenSource has a working agreement with Microsoft that will ensure that Xen runs on top of Microsoft's upcoming Viridian virtualization hypervisor.
"We're building on top of the Microsoft Viridian base," Levine explained. "Think of Viridian as the proxy for the Xen hypervisor. When Viriidan comes out, the same set of producs that we've done will be on top of Viridian. The major differentiator will be that we can offer customers a choice, whether they want platform virtualization, a stack based on Xen or a solution based on Viridian."
The XenSource product lineup is expected to be integrated into Citrix's offering providing a complete stack of solutions that enables desktop delivery.
Though XenSource is being acquired, Levine pointed out that the open source work will remain a separate initiative in some respects.