Re: Let me be the first to say...
By starting again and eschewing WebKit, going their own way AGAIN, all they are doing is adding ANOTHER variant to deal with.
Of course - and you can be certain that M$ won't get it right! They'll just introduce a whole new set of incompatibilities for web developers to have to cope with.
My websites all now warn visitors (if Internet Exploder is detected) that they are using an insecure and unreliable browser on an insecure "operating system" and that the site is unlikely to render correctly on their defective web browser. Our visitors use of Internot Exploiter has reduced to under 3%. People are beginning to realise that M$ isn't the answer (except to some really stupid questions)!