Apple's new "Mighty Mouse"

It strikes me as strange that much of what is written seems to tell history badly. And also misrepresents the current state of affairs.

Various articles are claiming that "it's long overdue" that Apple support a multi-button mouse. That's just plain misleading. Apple's MacOS has supported a multi-button mouse for years. I have a 3 button mouse installed on my iMac. It works great - all of the buttons do what I expect. I have a scroll-wheel. It works too. Fantastic. So: what's the problem?

The "Mighty Mouse" is the first multi-button mouse that Apple is selling for their computers.

Multi-button mice were most likely introduced long-ago on Unix computers. I remember using a 3-button mouse on SunOS 1.1 back in 1985. It appears that X-Windows, developed at MIT in conjunction with DEC (Digital Equipment Corporation, later bought by Compaq, later bought by HP) first supported three-button mice for the widespread public.