Apple on x86 - took them long enough!
Rumored many times, pushed so hard over the weekend that NPR had mentioned it this morning, it is now official that Apple is going to be running on Intel. This is mentioned at ArsTechnica.com as well as Slashdot and News.com and so on and so on.
What I find amazing about this is after many years of Steve Jobs swearing up and down that PPC was clearly a better processor than anything on the x86 side, that supposedly OS X has been running on x86 for five years. Clearly this means that Apple knew this day would come, even if they never wanted to admit that "thinking different" was crushing them. (Edit June 7 2:55 pm - it should be noted that of course Darwin, the open source kernel for OS X, has been on x86 the whole time, which looking back now was clearly quite easy given that they had the whole OS there, and it makes the five year number not hard to believe.)
Now, what will be very interesting is, how will OS X look when it's running on hardware that Apple doesn't have complete control over? We already know that overclocking is a serious problem on the x86 side. We also know that there's a lot of buggy hardware out there. (Aside: I recently had 5 out of 13 memory modules from a major name brand arrive bad. We wouldn't have known if not for Memtest86.) It will be interesting to see if the official answer is "if you don't run on official overpriced Apple hardware, you get no support", as that will be counterproductive to market share, even if it avoids these problems. It will also be interesting to see if there are never AMD-based boxes, as x86-64 is clearly the future of 64-bit computing for the large majority of users for some time to come, and it's an AMD invention.