Apple is not in a monopoly position, MS is. Different rules apply when you are, specifically about abusing your monopoly power in one area (e.g. operating systems) to muscle your way into another (e.g. web browsers).
Except in the Apple arena, Apple DOES have a monopoly. You can't use their OS on non-apple hardware ("legally"). So technically, Apple is forcing that piece of crap Safari down every Apple user's throat by default, just like MS has with IE.
Now, sure, Apple doesn't have the marketshare, but they should have to play by the same rules in the marketplace. If I were MS, I'd sue the EU to force all OS manufacturers to give users a choice at first-bootup/install of which browser they want.
Oh, and let's not forget that the countries of the EU weren't seeking to sue MS and their position. Not until the EU saw it that they could get a lot of money from MS, Intel, etc, and use it to help fix their $hithole economies.
better yet - MS should just pull all their licensing from every EU country, refund people money, and then sue every person and business who continues to use their software without license. See how the EU likes that.