Internet Exploder, an excellent browser? With Internet Explorer 9, it's possible! Microsoft's made a very pretty browser that feels like it's a part of Windows 7, loaded with HTML5 compatibility and unmatched graphics hardware acceleration for whizzy, whizzy web apps.
It's way more standards compliant than any previous version of IE, with a 95 score on the Acid3 web standards test. Like every modern browser, it's packed in a bunch of HTML5 features, though what Microsoft's pushing the hardest, particularly in its big shebang demos—that you can catch here—is the fact that it's using Direct2D and DirectWrite for hardware-accelerated graphics rendering with your GPU.
The promise is that by tapping your graphics card, the browser can run more hardcore web apps, like games in the browser, as some of Microsoft's impressive, if slanted, demos attest to. (Google's pushing its own ways to reach the same end.)