Quoting from the IBM official announcement:
Building upon the company’s commitment to providing clients open solutions based on Linux and virtualization technologies, IBM (NYSE: IBM) today announced its extensive portfolio of middleware and systems platforms will support Novell’s new SUSE Linux Enterprise 10 offerings. The new SUSE Linux Enterprise offerings incorporate the open source Xen™ virtualization software to help businesses increase server utilization and lower management costs.
IBM will support Xen technology as part of the Virtualization Engine portfolio on the company’s Intel and Opteron processor based server and IBM BladeCenter systems…