Apple needs to start making a "blade" type server. They are far superior to any other solution for web, mainframe, or cluster type servers. The small and low power G4 processor would be well suited for a blade server.
The best blade servers are made by RLXtechnologies. The RLX 324 can up to 24 blades in just a 3U rack. You can stack up to 14 and have a cluster server with 336 processors.
MacCentral reports Though researchers on the Human Genome Project would rather use Macs, Apple's computers are the wrong shape to make into high-power computer clusters, according to a Wired article.
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