Just seems silly and impractical for me. I mean leaning forward to walk? Raising your left foot to jump? Well, I understand there are practical limitations, but its hard to take seriously.
I do like the idea of punching our your portals, but that's about it. The holding your left arm out to the side to pick up and drop objects is the most ridiculous in my opinion. I mean, at least let it be something like, say... oh I don't know... maybe bringing your hands together? You know, something that remotely resembles actually picking something up? And then dropping things happens when you separate your hands again. Surely the Kinect can do that much, right?
If you've got the capability to work with something that sophisticated make the controls actually make sense!