Jeff Antwi has posted a blog on player movement and animations on EASports.com, which you can check out here. It also includes seven videos demonstrating animations in NBA Live 10, though no real "game footage" as yet.
It's kind of hard to tell just how fluid movement and controller responsiveness will be from a video, the latter in particular requiring hands-on experience. However, they don't look too bad and there does seem to be a subtle difference between the different dribbling animations. We'll probably see a bigger difference once the signature dribbling styles make their way into the demonstrations. Interesting to see some work-in-progress videos at any rate.