PS3 has remote play with Vita, no game uses it.
PS3 has remote play with PSP and has had it since the PS3 launch (You can play Lair on your PSP if you wanted to).
Sony demoed off the PSP being used as a rear view mirror for Gran Turisimo HD at an E3 sometime.
PS3 has XMB remote play with both handheld devices.
PS2 has had the eyetoy since 2000, most games today on Kinect don't do too much more than what devs did back in 2000
PS2 had a "Wand" like technology back in 2002 when Dr. Marks was demoing new technology to be used with the eyetoy and have 3D tracking (He even demoed the Kinect prototype before MS bought it)
Nintendo had the Power Glove back in the early 90s (Or late 80s, too lazy to remember) which eventually would become the Wii-mote
Nintendo had asymmetrical gameplay with their GBA and GC (200x, can't remember the year).
Innovation not equal "invent". Invent means to create something that doesn't exist before. Innovate means taking an existing idea and improving upon it. Nintendo rarely "invents" they just take old ideas from the 80s, take technologies they've innovated from back then, and innovate them again for now. Sony takes current game ideas and innovates them. Both Nintendo and Sony both "copy" according to everyone. On another note, no one ever gave MS hell for "innovating" on the eyetoy, but everyone gave Sony hell for "innovating" the wii-mote (Move work was started on way before the PS3/Wii/360 came out so it was more of an asynchronous development).
