I teach Oracle at the University of Washington and just wanted to let the Mac community know that a milestone has been achieved this week using a pair of G5s. Kent Stroker of Advanced Technology Services and I have successfully built, tested, and publicly demonstrated Oracle 10g Real Application Clusters on OS X/Darwin 10.3.8 using a Mac mini as the client. Performance and scalability were excellent and this opens the door for organizations wanting to host industrial strength business applications such as SAP, PeopleSoft, and Siebel to view the Mac as a viable alternative to Sun-Solaris, Hewlett Packard's HP/UX, IBM's AIX, and all of the Linux and Windows based solutions. Photos taken of the RAC cluster can be seen at www.psoug.org. Click on "RAC on Mac" if you are interested. The Mac is definitely ready for the corporate data center.