Navigation controller, Motion Dildo, Guns, what's next? I hope some of the people who were complaining about Kinect's pricing start doing the math - they're both going to cost you a bit of coin. Everyone complains about Microsoft's hidden peripheral costs, but truth is they ALL do it when they think they can get away with it.
Does anyone here remember the motion sensing vs dualshock bull Sony pulled early in the PS3's life? If their motion sensing controller wasn't a shoddy stopgap measure to begin with (until they could settle a lawsuit), they wouldn't need Move. If you need to know more about the future of the PS3's peripherals, just look at the Wii's peripherals.
On a related note, when was the last time anyone here used a "gun" peripheral that looked good? I think the last one I had that wasn't ugly (especially if you painted it black) was the Konami Justifier revolver-shaped gun for Genesis.