I'm not sure how to digest this news, and what exactly it will mean for Apple and the future of the Mac platform. Speculation abounds.
I bought my latest Mac, a G5 1.8GHz single processor, in September 2003. On my preferred upgrade schedule, I would be due to buy another one about that time in 2006. This switch has me thinking. Will my G5 become another museum piece, like my PowerCenter 150 which I couldn't bear to depart with (being one of the few produced Mac "clones")? How long will I be able to run applications on my PPC processor if I decide to stretch the life out of my G5 further? (I did use my G4/400 for about four years before upgrading, and boyziggy is still getting decent use out of it.)
If this move backfires and ends up killing off the Mac OS ultimately, I guess I'll have to switch to Linux as my desktop OS, because I can't see myself using Windows as my primary platform. I tried and failed to convert to Linux once before, years ago, but the end-user experience is probably much smoother now than it was then. And in the interim I got 3-4 years of Linux system administration under my belt, running a development server at work. (Though we're now using Apple Xserves, as there were no Linux sysadmins in our campus support departments to help me out.)