All three had opportunities to build viable competitors to Windows. All three botched it. So you and I are stuck with fat and happy Microsoft doing whatever it wants. Whenever it wants. Repeat after me one more time.
Competition is good.
Monopoly is bad. Jump to my Berst Alerts forum to talk it over, or send me a message with the Talk Back link below. They keep going, and going, and . . . It's the money, stupid.