Open source enterprise software company Red Hat has updated its flagship operating system, Red Hat Enterprise Linux (RHEL), to take full advantage of the latest spoils from the heated microprocessor battle between Advanced Micro Devices and Intel. RHEL version 5.5, released this week, has been reconfigured for Intel's just-released eight-core Nehalem-EX and AMD's almost-as-recently released 12-core "Magny-Cours" Opteron 6100 Series processors...