Can you loose weight with the X box kinect?!

oh yeah for sure!! theres like kinect fitness or something like that and its basically the same as pilates, but you have to be consistant with it and do it like everyday for 25 mins to half an hour.. and of course EAT right!! thats more than half of losing weight!!

work out a lot

Any aerobic exercise will help you lose weight, and these exercises include Kinect.
When I used to play with my Kinect often, I was losing weight quickly, and my muscles grew a lot.
If you're asking this to know if you should get one, then go for it.

absolutely.