I think on the surface the Sony Motion device does seem like a Wii rip-off (which I am sure Wii is the only reason they began developing the controller) however, the Sony device is so much more capable than the Wii device (yes even with their new "motion+" which honestly should have been in the device when it first launched, its unprecise motion capture is one reason I do not like the Wii, as well as the lacking visuals). The Sony device can actually recognize you in a true 3D space, forward, back, any true 360 direction, and coupled with the graphics power of the PS3, I do expect some pretty amazing games coming out for this device. Also, havent there been studies about virtual interfaces, and that people "need" something to actually touch and interact with in order to get a satisfying experience... You wont get that with the Natal... and honestly, who is going to sit there and wave their hand back and forth to cycle through their entire music or photo list (which could be into the thousands of items...) when you can just hold down a direction on the controller. I think that honestly, the Natal will come across as more gimmicky than anything else. I am sure there will be a few games that are actually fun with the device, but will for the most part turn out like the Wii (hundreds of complete crap titles). And I am sure that the Natal will spawn some completely new game genres because of the interface, but I do not see it interacting well with current established genres... I mean how are you going to play Halo (as an example) on that? There is no way to turn, or even shoot (not to mention the accuracy of the motion capture is very lacking...). This is where I see the Sony device taking off on the long road, it already has triggers and direction controls on the device, so can be used more realistically than the Natal. Also, how sad is it that the tech demos for the PS3 were still more graphically intensive and attractive than full blown titles on the Wii? lol
As a side note... how creepy was Milo?