you probably noticed the Macintosh Rose Garden.... a unix-based operating system that allows programmers (and neophytes) the opportunity to modify applications and settings internally with a 'terminal' program. Although I barely use anything even as complicated as applescript, my understanding of this is that one could run simultaneous operating systems and applications based in Unix on the MAC OSX platform. Theoretically speaking, the new OS could be ported to Wintel machines allowing the 95% of the world using Intel processing the opportunity to test drive MAC OSX without changing their present 'superfast' 2.x gigaherz consumer machines. (which still are significantly slower than the Motorola G4 chipsets the Mac uses.) The greatest implications would be in internet usage that allows various software to become cross-platform..... all this is presupposes that Unix would be the kernel of choice for standards to follow. One has to only look at what happened with JAVA to see what the programmers allied with The Evil Empire at Redmond would cook up to ruin the recipe.
But then I have always backed losers in technology. From Betamax (I have the last Sony model manufactured for sale in the US... in fact, I am told the last machine sold>.) I also heavily invested in Turnstone technology who had the monopoly on DSL routers to allow fledgling companies to interface with the regional bell switching stations. That company has not entirely folded although the stock dropped from $60 to it's present price of around $4. Most of the DSL startups like Northpoint, Rhythms, Telocity are now either out of business or owned by regionals or conglomerates like Direct TV.
That personal history may explain my hesitation in ramping up the bets when I am shown a 'technological advantage' in the game of 21. The supposed edge of better science has been fabulously costly to me in terms of investment success.