Minimig uses PS/2 mice and keyboards, and a VGA monitor, which a real A500 doesn't. It also uses flash memory for mass storage, which is faster, quieter and more reliable than floppy disks.
Real A500s haven't been made for a long time, and when the last one breaks, they're gone for good. Minimig solves that problem.
Minimig is open source, and can/will be improved to the level of an A1200/CD32, or even way beyond.
But the real point of the minimig is that Dennis wanted to do it, and anyone who didn't see the point couldn't stop him.
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