Lets be honest, the Move is a Wii-mote knockoff (or a wii-mote inspired if you're in denial). So they are both in direct competition for the Wii's dominated demographic-the casuals.

Assuming the PSmove will be successful, Nintendo will most likely be the one to suffer. Because "motion control" has been Nintendo's key differentiation regarding competition & business strategy.

[natal not included in this discussion because very little information has been released about it]

seriously....no, nintendo is so far ahead it doesnt even matter

According to many posters here, Move isn't doing anything remotely related to the Wiimote. It might not even be a motion sensing controller. It's a completely new idea developed by Sony. My answer? No.

Nintendo certainly should not underestimate Sony. Sony has a history of taking Nintendo concepts and beating them at their own game.

Absolutely not. The only thing that Move is going to take from Wii is maybe a few Wii third party games that would have otherwise been exclusive, will now be ported to PS3. But most Wii third party games suck anyway so it's really not much of a loss. Now PS3 will just get to share the shovelware.

It will definetly take atleast a handful people from Nintendo away. But still no threat to Nintendo even though I bet Nintendo will be careful and wont underestimate Sony again.

I consider the "Move" to be an extra feature to the PS3. It is competition no matter how you put it. If some owners of the Wii enjoy the WiiMote technology and want an HD console, then I believe they will maybe not move completly to PS3, but consider buying one.

TEH M0VE is a Wiimote KNOCK OFF?

Are you blind? Can't you see how different this is? Not a rip off dude, I swear to god.

wii motion plus it's a addon.