All for competition but not at a cost
I have always been for multiple browsers. It gives uses a choice of features and its one reason Firefox became so popular. But in the end its page rendering and plug in's working correctly that makes the web work. When IE was the only real game in town it was easy for web sites to develop for just one browser. Now of course we have at least 4 browsers for them to try and work with. To me we have created a nightmare for web developers because we lack standards. Or at least we don't enforce standards.