Novell, today, announced the official release of the SUSE Linux Enterprise platform version 11. From the release:
As data centers become more heterogeneous, customers are demanding a cost-effective platform that can run their applications reliably and with high performance on any hardware platform and hypervisor as well as in appliances and cloud computing infrastructures. With SUSE Linux Enterprise 11, Novell is delivering the leading mission-critical Linux* platform to allow customers to economically deploy workloads wherever and however they choose, with complete support from Novell and its global partner ecosystem of solution and hardware providers and independent software vendors (ISVs).
SLES has become the linux distribution of choice for several vendors, including SGI and Cray. For more info, read the full release here.