I'm sorry, but to go back to the original statement, "Microsoft's tying of Internet Explorer to the Windows operating system harms competition between web browsers, undermines product innovation and ultimately reduces consumer choice."
This, is pretty ridiculous to be honest, It's like saying Nike shouldn't supply their shoes with laces, as it ultimately may reduce consumer choice when it comes to choosing their preferred laces. I can see where you are coming from, but are the EU objecting to it being difficult to remove IE, or the sheer fact that it's pre-installed on the OS? If it's the former, fair enough, I hope they win, but if it's the latter, I hope they have one helluvan argument to beat MS, because the giant that is MS will inevitably win unless the case presented is a particularly potent one.