I keep hearing about how in the future Sony and MS are going to steal the touchscreen and the Wiimote ideas that Nintendo came up with. They both have already stolen the D-Pad and Analog stick from Nintendo's previous consoles.
My question is, how can they do this? Didn't Nintendo patent these innovations? I thought a patent was good for 20 years or something like that. The D-pad is surely out of patent by now, but what about the analog stick? Companies like Immersion have sued for violating their rumble patent, but why hasn't Nintendo ever sued anyone for taking their ideas?
This is just something I don't understand. It isn't a good business decision on the part of Nintendo to allow Sony or MS to copy their wiimote in the future. Same with the touchscreen gaming...
I'm not really an expert on Patents, but I thought they worked to keep competitors from stealing your ideas. If they don't in fact work this way, then what good are they?