Right, Nintendo invented:
D-Pad (NES)
Shoulder Buttons (SNES)
Anologue Stick (N64)
Rumble Pack (N64)
Trigger Buttons (GC) - Not sure if MS came up with it first though
Sony Invented:
Eyetoy (Virtual interactivity),
Anologue sensitive buttons (On all the buttons of the controller),
they pretty much stole the rest...yep, we will see a Revolution controller look-a-like from Sony. Nintendo spilled their beans to early.
MS invented:
Online gaming (That\'s it)