Apple have broken with another tradition; this time they have acknowledged that Mac users may be able to cope with the idea of (gasp!)
more than one mouse button. Of course, just making a 2-button mouse would be too obvious; Apple's
Mighty Mouse (whose name they seem to have licensed from Viacom, owners of the old cartoon series) has either one or no buttons but rather and a touch sensor to detect which side of the shell you are pressing. There's also a scroll wheel and buttons on the side, which can be programmed to trigger your favourite OSX window-shuffling effect. And apparently it includes a small speaker which plays a clicking sound every time you press a button.