The difference is Wii is tracking two points of IR light and that is the patented part. PS3 is only tracking one and it isn't using a point of IR light. It's technically very different but the result is similar.
Also did you know that The Conduit's controls are completely customisable? If you don't like the controls then try changing them to suit your preferences.
Its still technical theres no proof that SONY wand was better than wiimote in terms of accuracy and speed. But then, Nintendo already have the WM+ so SONY lost on that.
As for The Conduut, I doubt the gameplay of The conduit(because of controls I might say) can match to this:
and its just a sample. you know the very same controls Wii core gamers pissed and core gamers anticipating the conduit? The wiimote relies on lightgun arcade shooter controls. I'll say this but the wiimote only have one function on FPS. To make the newbie play FPS and TPS. THATS IT. Nintendo didnt create the wiimote for accuracy and cursor and turning speed like on the PCs. its for ease of use. THATS IT. Thats why once you get used to it it feels easy to play FPS.
Now onto the original question, is motion controls really worth it? If its not even accurate enough as analog and mouse controls. Or motion controls really intended for the casuals?
end of core gaming days prediction:
E3 2006-The beginning of the end. Wii introduced
E3 2008- Armageddon. Wii motion plus introduced. Wii Music. Reggie says Animal crossing was a core game. Massive disappointment. many Wii core gamers selling their Wii.
E3 2010- Tape runs out