Amiga Wiki: PowerPC :-)
---edit---
I thought PowerPc means MOtorola 68k Processor, but can use PC hardware. Is that correct?
The PPC is the successor to the 68k (made by motorolla (and IBM)) but AFAIK they're very different architectures.
Can I replace my x86 mainboard by a PPC mainbaord and then
- reuse my VGA card, modem, etc.?
You'd have to replace it with an AmigaONE mobo or Pegasos mobo. Your cards may or may not be compatible, but as iama said, modems are a bit iffy with any alt OS.
- run Mac OS X?
The AmigaONE and Peg will run it under Linux, but not natively (you cannot build yourself a "Mac" that way)
