When I'm doing web development (HTML, JavaScript, XSLT), I use the free version of Aptana Studio Professional, which essentially is a bundle of the Eclipse editor plus the Aptana plugins. I add the free AnyEdit Tools plugin so that it tabifies and deletes trailing spaces for me.

Of course Microsoft charges for IE. This cost is hidden by being part of the cost of Windows.

Correct - they note that their statistics are likely to be skewed because most of their visitors are interested in using alternative browsers. This is probably why they show a 44% share for Firefox. However, it's still telling that 20% of their visitors are using IE6.

Right now, according to MarketShare, IE6 and Firefox 2/3 are roughly tied for market share (about 20% to each). TheCounter says that IE6 has 34% of the market while Firefox has 17%, and even W3Schools says that IE6 still has about 20% of users.

The moral of this story is: lots of people don't upgrade. They don't even run Windows Update. They use the browser they got when they installed XP, and they probably don't even know anything else is out there.

This is why, whenever Microsoft ties an application to the operating system, the market suffers. It becomes really hard to compete in that space. Right now, nobody's making money selling a web browser that competes with the one that comes with Windows. This is the way it's been for more than a decade now. The antitrust action against Microsoft was nothing more than a slap on the wrist; it did nothing to restore competition.

If Microsoft is so interested in bundling high-quality apps with the operating system for the good of its users, then why haven't they bundled Microsoft Word?