I would say that Microsoft-focused web developers' attitudes have changed a lot in the last few years. I was at a DevDays event a few years ago, when ATLAS bet

I would say that Microsoft-focused web developers' attitudes have changed a lot in the last few years. I was at a DevDays event a few years ago, when ATLAS beta (now ASP.NET AJAX) was demoed. There was much snickering when it failed to work perfectly in what the speaker derisively called "the other browser" (Firefox). Today, I can't see that happening. If a Microsoft web framework failed to work on a non-IE browser, they wouldn't dare demo it, because most of the audience would blame Microsoft, and not the browser.