Probably not. I suspect that as long as IE is the default browser on Windows, their revenue doesn't change that much year over year. People who don't change the

Probably not. I suspect that as long as IE is the default browser on Windows, their revenue doesn't change that much year over year. People who don't change their default homepage don't change their browser either. What is a compelling reason is revenue loss in their cash-cow franchises like Office. If they come to believe that they need a version of Office that works in the browser or they will lose revenue, then developing a fast version of IE is very important. If they believe that people won't use a computer that doesn't provide them with great experiences on the sites they love right out of the box, then developing a standards compliant version of IE is important.