Why is everyone talking about IBM doing something illegal? Hello, they aren't considered a monopoly! That was thrown out in 1981, with President Reagan.
Also, I'm not sure I like the term "missed out", when it refers to IBM and Sun. They decided not to proceed with the purchase, how is that missing out? If Oracle swooped in and stole them while the negotiations were ongoing, then, I'd agree, but it was nothing like that.