"Microsoft once ran a great ad for Office, its business-software
cash cow. It went something like this: 'Over 94 percent of the
business world uses Microsoft Office. What are we doing wrong?'
"It was true: the programs of Microsoft Office (Word, Excel,
PowerPoint, Access, Outlook) seemed as permanent in our lives as
the sun, the moon and Windows error messages. Its rivals —
I.B.M.'s Lotus suite and Corel's WordPerfect suite, for example
— were pretty much the same thing for pretty much the same
price, and never posed much of a threat. The world waited for a
contender that was so compelling, people might actually consider
filing for Microsoft divorce.
"Now there is one. It's called OpenOffice, and it has a killer
feature: it's free..."