Just weeks ahead of its public launch, Apple Inc. has updated the minimum system requirements for its next-generation Leopard operating system to exclude 800MHz PowerPC-based Macs, AppleInsider has learned. The Cupertino-based company has yet to officially announce the hardware requirements to run Leopard, due out in October, but had long stated in developer documentation that the software would require "an Intel processor or a PowerPC G4 (800MHz or faster) or G5 processor."