Here's a great reason for a Amiga G5 machine....

http://www.theregister.co.uk/2004/07/26/ibm_ppc970mp/

Quote:

IBM is preparing a dual-core version of its 90nm PowerPC 970FX processor - aka the G5. Codenamed Antares, the chip will be delivered - likely in sample form - to Apple later this summer. Either way, the chip, to be formally called the PowerPC 970MP, is said to contain two 970 cores each with its own AltiVec/Velocity Engine SIMD unit and 1MB of L2, up from the 970FX's 512KB, but still without L3 cache support. clock initially at 3GHz with a 1GHz frontside bus

However, Motorola is supposedly working on a dual core G4. This chip is a bit more attractive to the embedded market. But, I'm all for a dual core G5 Amiga!

@blitterstorm

At the time there were NO affordable dual CPU systems and none of the desktop OS's took advantage of them, you needed a high end Unix server/workstation OS and an expensive computer to have 2 or more CPU's. The PowerPC BeBox and the BeOS changed this, the OS was designed from the ground up to be heavily multithreaded, multitasking and to support multiple processors (up to 8, this was a hard coded limit ass there wasn't any point in having more CPU's supported when you couldn't buy the hardware - you still can't, *-way Opteron systems have yet to ship AFAIK - a lmiti which could have been easily changed acording to the Be developers). The BeBox and BeOS was designed as "an OS for Geeks" hence the Geekport, it wasn't designed with aparticular use in mind, it was just designed to be fast and support just about any kind of use. It would be possible to create a geekport compatible system using an FPGA or even a PIC but I can't see why you would want to, it was never really used, esspecailly not commercailly.
OpenBeOS, BeFree, Blue Eyed OS or Cosmoe are the only way that you could do it unless you could write the drivers to run the BeOS on a G5 but even then it would run in 32bit mode and PalmSource have been unwilling to license the code to anyone (yellowTAB only have it as they allready had a license with Be Inc.). Cosmoe is a BeOS like API and interface to run on Linux (and "soon other" systems), BeFree and Blue Eyed OS are both recreations atop of the Linux kernel and Open BeOS (Now Haiku) is a completly new implemntation writen from scratch but designed to be binary compatible (to the extent that you can drop the app_server or net_server in a BeOS R4 or R5 install and it will work). None of these systems are even close to being ready, Haiku is the most advanced and it still needs a lot more kenrel work though all of the kits can be used in BeOS R5 with varying degrees of success depending on how complete they are (the Networking kit and MIDI are very complete, the Application/Interface Kit and Media Kit are well on their way to being usable and the OpenBeFS system is finished and ready for use), if you build and boot Haiku you get a command prompt where you can test some command line apps, it will even run most BeOS command line apps.