Not if you care about video games. Or Star Wars.
Don't just take note of the lag present when Kinect evangelist Kudo Tsunoda swings his lightsaber. Take a look at when he "jumps", and his on-screen jedi doesn't begin to somersault until Kudo has already landed.
Oh dear. You can check out a slicker, less realistic trailer for the game here.
On a brighter note, the second title demonstrated in this pre-E3 event looks a lot better (at least for kids), as it lets them visit a virtual Disneyland, fly around the park and...cuddle Mickey Mouse.