Call it Nintendo Darwinism: the evolution of the Wiimote over time due to survival pressures (or the simple desire to kick increasing amounts of undead ass). As a further example of the phenomenon, AcidMods' Wii RapidFire kit adds full-auto functionality to either your A or B button, courtesy of a solitary chip and some pretty straightforward soldering. To sweeten the deal, they've added an on / off switch, and the old A button lights up to let you know when you're in business. For some enticing photos and ordering info hit that read link, and be sure to check out some red hot video of the device in action after the break.
Wii RapidFire Kit by Acidmods.COM from CyberPyrot on Vimeo.