To counter the sentiment that many have offered (in my own, paranoid way). Assume that you get your wish, and Netscape and all the other browsers kneel to the might and glory of IE. Further, Microsoft releases IE to Linux, FreeBSD, and a plethora of other open-source and fledgling OS's. Everyone is happy, web browsers are all the same. Web developers can concentrate on writing only proprietary IE extensions. The number of pretty pages on the web skyrockets. Life is great.
Six months down the road, IE 7.0 comes out. That is, IE 7.0 for Win32 comes out. Sure, the ports are promised. A few months later, when Win2k SP7 comes out, a brand new, exclusive, flashy, proprietary format for integration with MSMonop.dll comes out. It is fully compatible with IE 7.0, and, everyone know that that is the only browser,so it's okay to be flashy and new.
A few months later, people start complaining that it is taking forever to get the new IE for their platform. MS promises the release soon. Meanwhile, more, and more sites move to the new IE 7.0 proprietary format, knowing that soon, everyone will be able to see it.
Slowly, necessity comes forth, and users must "temporarily" install MSwin32 just to view a few pages on IE7.0.
Most of the new sites are now exclusively IE 7.0 proprietary. Still, IE 7.0 is promised for other platforms, but IE 7.5 is NOW available for WIN32! IE 7.5 includes new bug-fixes (and bugs) as well as slightly modified versions of the new proprietary format. It is mostly compatible with IE 7.0. Oh, by the way, Win98SE has a mysterious bug in it, and IE 7.5 won't run properly. Everyone really should upgrade to Win2k SP8.
Maybe Microsoft gets around to releasing IE 7.0 to Mac and Solaris. Maybe...
Remember, it has happened before, many times. This is what MS is good at.