I just left the forum for the presentation of Virginia Tech’s supercomputing cluster. The big news is that the system is going to run Mac OS X, and not Linux, as some had speculated. The presenter explained that this was a function of processor optimization — Linux has not yet been created expressly for the G5, nor is there a compiler available that will optimize for the G5. The systems will all be 2GHz dual-processor models, for a total of 2,200 processors. The system will go on-line October 1, and be fully tested and functional by January 1.