I have a friend who uses Unix and as far as PCs , he swears by it . The MAC OSX is based on Unix but has been improved to the standards that Mac users expect . Of course there is always a little copying going on . Apple got the idea for the GUI from Zerox , and improved it . Bill Gates copied the Mac OS to make windows . I do think it's a great idea that Apple could be in the making for an OS for PCs , for the longest time Apple has been tooooo stingy with there OS . Although , most people fall into the megahertz lie , they think that since the PowerPC chips are rated lower in megahertz that the Macs are slower , which is quite the opposite . The Mac G-4 processor is half the size of the Intel P-4 and the 867 mhz Mac uses only 7 pipeline stages to complete an instruction . The P-4 uses 20 to operate at 1.8ghz . So , even though the Mac is only 867mhz , it's over 50% faster in completing instructions . I do think that Apple and Pentium users could all benefit from Apple making an OS for them . It will be interesting to see how it turns out .